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filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">Dans cet article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#exemple_interactif">Exemple interactif</a></li><li class="document-toc-item "><a class="document-toc-link" href="#syntaxe">Syntaxe</a></li><li class="document-toc-item "><a class="document-toc-link" href="#exemples">Exemples</a></li><li class="document-toc-item "><a class="document-toc-link" href="#les_paramètres_du_reste">Les paramètres du reste</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spécifications">Spécifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#compatibilité_des_navigateurs">Compatibilité des navigateurs</a></li><li class="document-toc-item "><a class="document-toc-link" href="#voir_aussi">Voir aussi</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/fr/docs/Web/JavaScript">JavaScript</a></li><li class="section">Tutoriels</li><li class="toggle"><details><summary>Beginner's tutorials</summary><ol><li><a href="/fr/docs/Learn_web_development/Getting_started/Your_first_website/Adding_interactivity">Your first website: Adding interactivity</a></li><li><a href="/fr/docs/Learn_web_development/Core/Scripting">Dynamic scripting with JavaScript</a></li><li><a href="/fr/docs/Learn_web_development/Core/Frameworks_libraries">JavaScript frameworks and libraries</a></li></ol></details></li><li class="toggle"><details><summary>Guide JavaScript</summary><ol><li><a href="/fr/docs/Web/JavaScript/Guide/Introduction">Introduction</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Grammar_and_types">Types et grammaire</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Control_flow_and_error_handling">Contrôle du flux et gestion des erreurs</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Loops_and_iteration">Boucles et itération</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Functions">Fonctions</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Expressions_and_operators">Expressions et opérateurs</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Numbers_and_strings">Numbers and strings</a></li><li><a href="/en-US/docs/Web/JavaScript/Guide/Representing_dates_times" class="only-in-en-us">Representing dates & times</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Regular_expressions">Expressions rationnelles</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Indexed_collections">Collections indexées</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Keyed_collections">Collections avec clés</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Working_with_objects">Manipuler les objets</a></li><li><a href="/en-US/docs/Web/JavaScript/Guide/Using_classes" class="only-in-en-us">Using classes</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Using_promises">Utiliser les promesses</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Typed_arrays">Tableaux typés en JavaScript</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Iterators_and_generators">Itérateurs et générateurs</a></li><li><a href="/en-US/docs/Web/JavaScript/Guide/Internationalization" class="only-in-en-us">Internationalization</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Meta_programming">Métaprogrammation</a></li><li><a href="/fr/docs/Web/JavaScript/Guide/Modules">Modules JavaScript</a></li></ol></details></li><li class="toggle"><details><summary>Intermédiaire</summary><ol><li><a href="/fr/docs/Learn_web_development/Extensions/Advanced_JavaScript_objects">Advanced JavaScript objects</a></li><li><a href="/fr/docs/Learn_web_development/Extensions/Async_JS">Asynchronous JavaScript</a></li><li><a href="/fr/docs/Learn_web_development/Extensions/Client-side_APIs">Client-side web APIs</a></li><li><a href="/fr/docs/Web/JavaScript/Language_overview">Language overview</a></li><li><a href="/fr/docs/Web/JavaScript/Data_structures">Structures de données en JavaScript</a></li><li><a href="/fr/docs/Web/JavaScript/Equality_comparisons_and_sameness">Différents tests d'égalité</a></li><li><a href="/fr/docs/Web/JavaScript/Enumerability_and_ownership_of_properties">Rattachement des propriétés</a></li><li><a href="/fr/docs/Web/JavaScript/Closures">Fermetures (closures)</a></li></ol></details></li><li class="toggle"><details><summary>Avancé</summary><ol><li><a href="/fr/docs/Web/JavaScript/Inheritance_and_the_prototype_chain">L'héritage et la chaîne de prototypes</a></li><li><a href="/fr/docs/Web/JavaScript/Memory_management">Gestion de la mémoire</a></li><li><a href="/fr/docs/Web/JavaScript/Event_loop">Concurrence et boucle des évènements</a></li></ol></details></li><li class="section"><a href="/fr/docs/Web/JavaScript/Reference">Références</a></li><li class="toggle"><details><summary>Objets natifs</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects">Aperçu</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/AggregateError">AggregateError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer">ArrayBuffer</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction">AsyncFunction</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator" class="only-in-en-us">AsyncGenerator</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction" class="only-in-en-us">AsyncGeneratorFunction</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator" class="only-in-en-us">AsyncIterator</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Atomics">Atomics</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/BigInt">BigInt</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array">BigInt64Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array">BigUint64Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Boolean">Boolean</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/DataView">DataView</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Date">Date</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/decodeURI">decodeURI()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent">decodeURIComponent()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/encodeURI">encodeURI()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent">encodeURIComponent()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Error">Error</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/escape">escape()</a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Obsolète</span> </abbr></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/eval">eval()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/EvalError">EvalError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry">FinalizationRegistry</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float16Array" class="only-in-en-us">Float16Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Float32Array">Float32Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Float64Array">Float64Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Function">Function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Generator">Generator</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction">GeneratorFunction</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/globalThis">globalThis</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Infinity">Infinity</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Int16Array">Int16Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Int32Array">Int32Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Int8Array">Int8Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/InternalError">InternalError</a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non standard</span> </abbr></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Intl">Intl</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/isFinite">isFinite()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/isNaN">isNaN()</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Iterator" class="only-in-en-us">Iterator</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/JSON">JSON</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Map">Map</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Math">Math</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/NaN">NaN</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Number">Number</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Object">Object</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/parseFloat">parseFloat()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/parseInt">parseInt()</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Promise">Promise</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Proxy">Proxy</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/RangeError">RangeError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError">ReferenceError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Reflect">Reflect</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/RegExp">RegExp</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Set">Set</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer">SharedArrayBuffer</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/String">String</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Symbol">Symbol</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError">SyntaxError</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal" class="only-in-en-us">Temporal</a><abbr class="icon icon-experimental" title="Expérimental. Le comportement attendu pourrait évoluer à l'avenir."> <span class="visually-hidden">Expérimental</span> </abbr></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/TypedArray">TypedArray</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/TypeError">TypeError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array">Uint16Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array">Uint32Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array">Uint8Array</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray">Uint8ClampedArray</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/undefined">undefined</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/unescape">unescape()</a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Obsolète</span> </abbr></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/URIError">URIError</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakMap">WeakMap</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakRef">WeakRef</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakSet">WeakSet</a></li></ol></details></li><li class="toggle"><details open=""><summary>Expressions et opérateurs</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Operators">Aperçu</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Addition">Addition (+)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Addition_assignment">Affectation après addition (+=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Assignment">Assignement (=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/async_function">Expression async function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/async_function*">Expression async function*</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/await">await</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_AND">ET binaire (&)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment">Affectation après ET binaire (&=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT">NON binaire (~)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_OR">OU binaire (|)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment">Affectation après OU binaire (|=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR">OU exclusif binaire (^)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment">Affectation après OU exclusif binaire (^=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/class">class</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Comma_operator">L'opérateur virgule</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Conditional_operator">L'opérateur conditionnel</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Decrement">Décrémentation (--)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/delete">L'opérateur delete</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Affecter par décomposition</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Division">Division (/)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Division_assignment">Affectation après division (/=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Equality">Égalité (==)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Exponentiation">Exponentiation (**)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Exponentiation_assignment">Affectation après exponentiation (**=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/function">L'opérateur function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/function*">Expression function*</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Greater_than">Supérieur strict (>)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Greater_than_or_equal">Supérieur ou égal (>=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Grouping">Opérateur de groupement</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/import.meta">import.meta</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/import">import</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/in">L'opérateur in</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Increment">Incrémentation (++)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Inequality">Inégalité (!=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/instanceof">instanceof</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Left_shift">Décalage binaire à gauche (<<)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment">Affectation après décalage à gauche (<<=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Less_than">Inférieur strict (<)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Less_than_or_equal">Inférieur ou égal (<=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Logical_AND">ET logique (&&)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Logical_AND_assignment">Affectation après ET logique (&&=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Logical_NOT">NON logique (!)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Logical_OR">OU logique (||)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Logical_OR_assignment">Affectation après OU logique (||=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Multiplication">Multiplication (*)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment">Affectation après multiplication (*=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/new">L'opérateur new</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/new.target">new.target</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/null">null</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment">Affectation après coalescence des nuls (??=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing">Opérateur de coalescence des nuls (Nullish coalescing operator)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Object_initializer">Initialisateur d'objet</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Operator_precedence">Précédence des opérateurs</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Optional_chaining">Chaînage optionnel (optional chaining)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Property_accessors">Accesseurs de propriétés</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Remainder">Reste (%)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Remainder_assignment">Affectation après reste (%=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Right_shift">Décalage binaire à droite (>>)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment">Affectation après décalage à droite (>>=)</a></li><li><em><a href="/fr/docs/Web/JavaScript/Reference/Operators/Spread_syntax" aria-current="page">Syntaxe de décomposition</a></em></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Strict_equality">Égalité stricte (===)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Strict_inequality">Inégalité stricte (!==)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Subtraction">Soustraction (-)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Subtraction_assignment">Affectation après soustraction (-=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/super">super</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/this">L'opérateur this</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/typeof">L'opérateur typeof</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Unary_negation">Négation unaire (-)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Unary_plus">Plus unaire (+)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift">Décalage binaire à droite non-signé (>>>)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift_assignment">Affectation après décalage à droite non signé (>>>=)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/void">L'opérateur void</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/yield">yield</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Operators/yield*">yield*</a></li></ol></details></li><li class="toggle"><details><summary>Instructions et déclarations</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Statements">Aperçu</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/async_function">async function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/async_function*">async function*</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/block">bloc</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/break">break</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/class">class</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/const">const</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/continue">continue</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/debugger">debugger</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/do...while">do...while</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/Empty">vide</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/export">export</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Statements/Expression_statement" class="only-in-en-us">Expression statement</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/for">for</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/for-await...of">for await...of</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/for...in">for...in</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/for...of">for...of</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/function">function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/function*">function*</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/if...else">if…else</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/import">import</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/label">label</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/let">let</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/return">return</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/switch">switch</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/throw">throw</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/try...catch">try...catch</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/var">var</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/while">while</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Statements/with">with</a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Obsolète</span> </abbr></li></ol></details></li><li class="toggle"><details><summary>Fonctions</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Functions">Aperçu</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/Arrow_functions">Fonctions fléchées</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/Default_parameters">Valeurs par défaut des arguments</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/get">L'opérateur get</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/Method_definitions">Définir une méthode</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters">Paramètres du reste (Rest parameters)</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/set">L'opérateur set</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Functions/arguments">arguments</a></li></ol></details></li><li class="toggle"><details><summary>Classes</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Classes">Aperçu</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Classes/constructor">constructor</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Classes/extends">extends</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Classes/Private_properties">Propriétés privées</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Classes/Public_class_fields">Champs de classe publics</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Classes/static">static</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Classes/Static_initialization_blocks" class="only-in-en-us">Static initialization blocks</a></li></ol></details></li><li class="toggle"><details><summary>Expressions rationnelles</summary><ol><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions" class="only-in-en-us">Aperçu</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Backreference" class="only-in-en-us">Backreference: \1, \2</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Capturing_group" class="only-in-en-us">Capturing group: (...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape" class="only-in-en-us">Character class escape: \d, \D, \w, \W, \s, \S</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_class" class="only-in-en-us">Character class: [...], [^...]</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_escape" class="only-in-en-us">Character escape: \n, \u{...}</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Disjunction" class="only-in-en-us">Disjunction: |</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Input_boundary_assertion" class="only-in-en-us">Input boundary assertion: ^, $</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Literal_character" class="only-in-en-us">Literal character: a, b</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Lookahead_assertion" class="only-in-en-us">Lookahead assertion: (?=...), (?!...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion" class="only-in-en-us">Lookbehind assertion: (?<=...), (?<!...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Modifier" class="only-in-en-us">Modifier: (?ims-ims:...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Named_backreference" class="only-in-en-us">Named backreference: \k<name></a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Named_capturing_group" class="only-in-en-us">Named capturing group: (?<name>...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Non-capturing_group" class="only-in-en-us">Non-capturing group: (?:...)</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Quantifier" class="only-in-en-us">Quantifier: *, +, ?, {n}, {n,}, {n,m}</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape">Échappement des propriétés Unicode</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Wildcard" class="only-in-en-us">Wildcard: .</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Word_boundary_assertion" class="only-in-en-us">Word boundary assertion: \b, \B</a></li></ol></details></li><li class="toggle"><details><summary>Erreurs</summary><ol><li><a href="/fr/docs/Web/JavaScript/Reference/Errors">Aperçu</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Promise_any_all_rejected" class="only-in-en-us">AggregateError: No Promise in Promise.any was resolved</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Property_access_denied">Error: Permission denied to access property "x"</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Too_much_recursion">InternalError: too much recursion</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Not_a_valid_code_point">RangeError: argument is not a valid code point</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/BigInt_division_by_zero">RangeError: BigInt division by zero</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/BigInt_negative_exponent">RangeError: BigInt negative exponent</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Form_must_be_one_of" class="only-in-en-us">RangeError: form must be one of 'NFC', 'NFD', 'NFKC', or 'NFKD'</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_array_length">RangeError: invalid array length</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_date">RangeError: invalid date</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Precision_range">RangeError: precision is out of range</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Bad_radix">RangeError: radix must be an integer</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Resulting_string_too_large">RangeError: repeat count must be less than infinity</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Negative_repetition_count">RangeError: repeat count must be non-negative</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_be_converted_to_BigInt_because_it_isnt_an_integer">RangeError: x can't be converted to BigInt because it isn't an integer</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Not_defined">ReferenceError: "x" is not defined</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Undeclared_var">ReferenceError: assignment to undeclared variable "x"</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init">ReferenceError: can't access lexical declaration 'X' before initialization</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage">ReferenceError: deprecated caller or arguments usage</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Super_not_called" class="only-in-en-us">ReferenceError: must call super constructor before using 'this' in derived class constructor</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Super_called_twice" class="only-in-en-us">ReferenceError: super() called twice in derived class constructor</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_strict_arguments_eval" class="only-in-en-us">SyntaxError: 'arguments'/'eval' can't be defined or assigned to in strict mode code</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_literal">SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Strict_non_simple_params">SyntaxError: "use strict" not allowed in function with "x" parameter</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Reserved_identifier">SyntaxError: "x" is a reserved identifier</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_backslash_at_end_of_pattern" class="only-in-en-us">SyntaxError: \ at end of pattern</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_for-of_initializer">SyntaxError: a declaration in the head of a for-of loop can't have an initializer</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Delete_in_strict_mode">SyntaxError: applying the 'delete' operator to an unqualified name is deprecated</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Arguments_not_allowed" class="only-in-en-us">SyntaxError: arguments is not valid in fields</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_await" class="only-in-en-us">SyntaxError: await is only valid in async functions, async generators and modules</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/await_yield_in_parameter" class="only-in-en-us">SyntaxError: await/yield expression can't be used in parameter</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_use_nullish_coalescing_unparenthesized">SyntaxError: cannot use `??` unparenthesized within `||` and `&&` expressions</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_character_class_escape_in_class_range" class="only-in-en-us">SyntaxError: character class escape cannot be used in class range in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_continue" class="only-in-en-us">SyntaxError: continue must be inside loop</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_duplicate_capture_group_name" class="only-in-en-us">SyntaxError: duplicate capture group name in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Duplicate_parameter" class="only-in-en-us">SyntaxError: duplicate formal argument x</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_for-in_initializer">SyntaxError: for-in loop head declarations may not have initializers</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Unnamed_function_statement">SyntaxError: function statement requires a name</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Function_label" class="only-in-en-us">SyntaxError: functions cannot be labelled</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Either_be_both_static_or_non-static" class="only-in-en-us">SyntaxError: getter and setter for private name #x should either be both static or non-static</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Getter_no_arguments" class="only-in-en-us">SyntaxError: getter functions must have no arguments</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Identifier_after_number">SyntaxError: identifier starts immediately after numeric literal</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Illegal_character">SyntaxError: illegal character</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/import_decl_module_top_level" class="only-in-en-us">SyntaxError: import declarations may only appear at top level of a module</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_incomplete_quantifier" class="only-in-en-us">SyntaxError: incomplete quantifier in regular expression</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side">ReferenceError: invalid assignment left-hand side</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_BigInt_syntax">SyntaxError: invalid BigInt syntax</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_capture_group_name" class="only-in-en-us">SyntaxError: invalid capture group name in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_char_in_class" class="only-in-en-us">SyntaxError: invalid character in class in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_class_set_operation" class="only-in-en-us">SyntaxError: invalid class set operation in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_decimal_escape" class="only-in-en-us">SyntaxError: invalid decimal escape in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_identity_escape" class="only-in-en-us">SyntaxError: invalid identity escape in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_named_capture_reference" class="only-in-en-us">SyntaxError: invalid named capture reference in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_property_name" class="only-in-en-us">SyntaxError: invalid property name in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_range_in_character_class" class="only-in-en-us">SyntaxError: invalid range in character class</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_group" class="only-in-en-us">SyntaxError: invalid regexp group</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Bad_regexp_flag">SyntaxError: invalid regular expression flag "x"</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_unicode_escape" class="only-in-en-us">SyntaxError: invalid unicode escape in regular expression</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/JSON_bad_parse">SyntaxError: JSON.parse: bad parsing</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Label_not_found" class="only-in-en-us">SyntaxError: label not found</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_colon_after_property_id">SyntaxError: missing : after property id</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list">SyntaxError: missing ) after argument list</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition">SyntaxError: missing ) after condition</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_bracket_after_list">SyntaxError: missing ] after element list</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_function_body">SyntaxError: missing } after function body</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_property_list">SyntaxError: missing } after property list</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_initializer_in_const">SyntaxError: missing = in const declaration</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_formal_parameter">SyntaxError: missing formal parameter</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator">SyntaxError: missing name after . operator</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/No_variable_name">SyntaxError: missing variable name</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_negated_char_class_with_strings" class="only-in-en-us">SyntaxError: negated character class with strings in regular expression</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_new_optional" class="only-in-en-us">SyntaxError: new keyword cannot be used with an optional chain</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_nothing_to_repeat" class="only-in-en-us">SyntaxError: nothing to repeat</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_numbers_out_of_order_in_quantifier" class="only-in-en-us">SyntaxError: numbers out of order in {} quantifier.</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_escape_sequence" class="only-in-en-us">SyntaxError: octal escape sequences can't be used in untagged template literals or in strict mode code</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Parameter_after_rest_parameter" class="only-in-en-us">SyntaxError: parameter after rest parameter</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Cant_delete_private_fields" class="only-in-en-us">SyntaxError: private fields can't be deleted</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Duplicate_proto" class="only-in-en-us">SyntaxError: property name __proto__ appears more than once in object literal</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Regex_raw_bracket" class="only-in-en-us">SyntaxError: raw bracket is not allowed in regular expression with unicode flag</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Redeclared_parameter">SyntaxError: redeclaration of formal parameter "x"</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Undeclared_private_field_or_method" class="only-in-en-us">SyntaxError: reference to undeclared private field or method #x</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Rest_with_default" class="only-in-en-us">SyntaxError: rest parameter may not have a default</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Bad_return">SyntaxError: return not in function</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Setter_one_argument" class="only-in-en-us">SyntaxError: setter functions must have one argument</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/String_literal_EOL">SyntaxError: unterminated string literal</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_super_call" class="only-in-en-us">SyntaxError: super() is only valid in derived class constructors</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_optional_template" class="only-in-en-us">SyntaxError: tagged template cannot be used with optional chain</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Hash_outside_class">SyntaxError: Unexpected '#' used outside of class body</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Unexpected_token">SyntaxError: Unexpected token</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_break" class="only-in-en-us">SyntaxError: unlabeled break must be inside loop or switch</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Unparenthesized_unary_expr_lhs_exponentiation">SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '**'</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Bad_super_prop" class="only-in-en-us">SyntaxError: use of super property/member accesses only valid within methods or eval code within methods</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma">SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/is_not_iterable">TypeError: 'x' is not iterable</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Unexpected_type">TypeError: "x" is (not) "y"</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Not_a_constructor">TypeError: "x" is not a constructor</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Not_a_function">TypeError: "x" is not a function</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/No_non-null_object">TypeError: "x" is not a non-null object</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Read-only">TypeError: "x" is read-only</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/BigInt_not_serializable" class="only-in-en-us">TypeError: BigInt value can't be serialized in JSON</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Builtin_ctor_no_new" class="only-in-en-us">TypeError: calling a builtin X constructor without new is forbidden</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Get_set_missing_private" class="only-in-en-us">TypeError: can't access/set private field or method: object is not the right class</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_assign_to_property">TypeError: can't assign to property "x" on "y": not an object</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_convert_BigInt_to_number">TypeError: can't convert BigInt to number</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_convert_x_to_BigInt">TypeError: can't convert x to BigInt</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible">TypeError: can't define property "x": "obj" is not extensible</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Non_configurable_array_element">TypeError: can't delete non-configurable array element</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_redefine_property">TypeError: can't redefine non-configurable property "x"</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Cant_set_prototype" class="only-in-en-us">TypeError: can't set prototype of this object</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Cyclic_prototype" class="only-in-en-us">TypeError: can't set prototype: it would cause a prototype chain cycle</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/in_operator_no_object">TypeError: invalid 'in' operand "x"</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Class_ctor_no_new" class="only-in-en-us">TypeError: class constructors must be invoked with 'new'</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value">TypeError: cyclic object value</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Invalid_derived_return" class="only-in-en-us">TypeError: derived class constructor returned invalid value x</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Private_setter_only" class="only-in-en-us">TypeError: getting private setter-only property</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Private_double_initialization" class="only-in-en-us">TypeError: Initializing an object twice is an error with private fields/methods</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand">TypeError: invalid 'instanceof' operand 'x'</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Array_sort_argument">TypeError: invalid Array.prototype.sort argument</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Invalid_const_assignment">TypeError: invalid assignment to const "x"</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Constructor_cant_be_used_directly" class="only-in-en-us">TypeError: Iterator/AsyncIterator constructor can't be used directly</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Requires_global_RegExp" class="only-in-en-us">TypeError: matchAll/replaceAll must be called with a global RegExp</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/More_arguments_needed">TypeError: More arguments needed</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/No_properties">TypeError: "x" has no properties</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Cant_delete">TypeError: property "x" is non-configurable and can't be deleted</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value">TypeError: Reduce of empty array with no initial value</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Getter_only">TypeError: setting a property that has only a getter</a></li><li><a href="/en-US/docs/Web/JavaScript/Reference/Errors/Key_not_weakly_held" class="only-in-en-us">TypeError: WeakSet key/WeakMap value 'x' must be an object or an unregistered symbol</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Called_on_incompatible_type">TypeError: X.prototype.y called on incompatible type</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Malformed_URI">URIError: malformed URI sequence</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Already_has_pragma">Warning: -file- is being assigned a //# sourceMappingURL, but already has one</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Errors/Stmt_after_return">Warning: unreachable code after return statement</a></li></ol></details></li><li class="toggle"><details><summary>Divers</summary><ol><li><a href="/fr/docs/Web/JavaScript/JavaScript_technologies_overview">Aperçu des technologies JavaScript</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Lexical_grammar">Grammaire lexicale</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Iteration_protocols">Protocoles d'itération</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Strict_mode">Mode strict</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Template_literals">Gabarits de chaînes de caractères</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Trailing_commas">Virgules finales</a></li><li><a href="/fr/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features">Fonctionnalités dépréciées</a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">Dans cet article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#exemple_interactif">Exemple interactif</a></li><li class="document-toc-item "><a class="document-toc-link" href="#syntaxe">Syntaxe</a></li><li class="document-toc-item "><a class="document-toc-link" href="#exemples">Exemples</a></li><li class="document-toc-item "><a class="document-toc-link" href="#les_paramètres_du_reste">Les paramètres du reste</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spécifications">Spécifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#compatibilité_des_navigateurs">Compatibilité des navigateurs</a></li><li class="document-toc-item "><a class="document-toc-link" href="#voir_aussi">Voir aussi</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="fr"><header><h1>Syntaxe de décomposition</h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><div class="status-title">Baseline <span class="not-bold">Widely available</span></div><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.</p><ul><li><a href="/fr/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#compatibilité_des_navigateurs" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Ffr%2Fdocs%2FWeb%2FJavaScript%2FReference%2FOperators%2FSpread_syntax&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p>La <strong>syntaxe de décomposition</strong> permet d'étendre un itérable (par exemple une expression de tableau ou une chaîne de caractères) en lieu et place de plusieurs arguments (pour les appels de fonctions) ou de plusieurs éléments (pour les littéraux de tableaux) ou de paires clés-valeurs (pour les littéraux d'objets).</p></div><section aria-labelledby="exemple_interactif"><h2 id="exemple_interactif"><a href="#exemple_interactif">Exemple interactif</a></h2><div class="section-content"><interactive-example name="JavaScript Demo: Expressions - Spread syntax"></interactive-example> <div class="code-example"><pre class="brush: js interactive-example notranslate"><code>function sum(x, y, z) { return x + y + z; } const numbers = [1, 2, 3]; console.log(sum(...numbers)); // Expected output: 6 console.log(sum.apply(null, numbers)); // Expected output: 6 </code></pre></div></div></section><section aria-labelledby="syntaxe"><h2 id="syntaxe"><a href="#syntaxe">Syntaxe</a></h2><div class="section-content"><p>Pour l'utilisation de la décomposition dans les appels de fonction :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>f(...objetIterable); </code></pre></div> <p>Pour les littéraux de tableaux :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>[...objetIterable, 4, 5, 6]; </code></pre></div> <p>Pour les littéraux objets (nouvelle fonctionnalité pour ECMAScript, actuellement en proposition de niveau 4, finalisée) :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>let objClone = { ...obj }; </code></pre></div></div></section><section aria-labelledby="exemples"><h2 id="exemples"><a href="#exemples">Exemples</a></h2><div class="section-content"></div></section><section aria-labelledby="utiliser_la_décomposition_dans_les_appels_de_fonction"><h3 id="utiliser_la_décomposition_dans_les_appels_de_fonction"><a href="#utiliser_la_décomposition_dans_les_appels_de_fonction">Utiliser la décomposition dans les appels de fonction</a></h3><div class="section-content"><h4 id="améliorer_la_fonction_apply">Améliorer la fonction <code>apply()</code></h4> <p>Il arrive souvent qu'on veuille utiliser <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply"><code>Function.prototype.apply</code></a> avec un tableau parmi les arguments de la fonction utilisée :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function f(x, y, z) {} var args = [0, 1, 2]; f.apply(null, args); </code></pre></div> <p>avec la décomposition, on peut désormais écrire :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function f(x, y, z) {} var args = [0, 1, 2]; f(...args); </code></pre></div> <p>Tout argument passé à une fonction peut être décomposé grâce à cette syntaxe et cette syntaxe peut être utilisée pour plusieurs arguments.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function f(v, w, x, y, z) {} var args = [0, 1]; f(-1, ...args, 2, ...[3]); </code></pre></div> <h4 id="utiliser_apply_avec_lopérateur_new">Utiliser <code>apply()</code> avec l'opérateur <code>new</code></h4> <p>Avec ES5, il n'est pas possible d'utiliser <code>new</code> avec <code>apply</code> (selon ES5 <code>apply</code> effectue un appel <code>[[Call]]</code> et pas un appel <code>[[Construct]]</code>). Avec ES2015, la syntaxe de décomposition permet de le faire naturellement :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var champsDate = lireChampsDate(maBaseDeDonnées); var d = new Date(...champsDate); </code></pre></div> <p>Afin d'utiliser <code>new</code> avec un tableau de paramètres, sans utiliser la décomposition, il faudrait l'employer indirectement grâce à une application partielle :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>function applyAndNew(constructor, args) { function partial() { return constructor.apply(this, args); } if (typeof constructor.prototype === "object") { partial.prototype = Object.create(constructor.prototype); } return partial; } function monConstructeur() { console.log("arguments.length: " + arguments.length); console.log(arguments); this.prop1 = "val1"; this.prop2 = "val2"; } var mesArguments = ["bi", "bop", "bup", null]; var monConstructeurAvecArguments = applyAndNew(monConstructor, mesArguments); console.log(new monConstructeurAvecArguments()); // (log fourni par monConstructeur): arguments.length: 4 // (log fourni par monConstructeur): ["bi", "bop", "bup", null] // (log fourni par "new monConstructeurAvecArguments"): {prop1: "val1", prop2: "val2"} </code></pre></div></div></section><section aria-labelledby="utiliser_la_décomposition_dans_les_littéraux_de_tableau"><h3 id="utiliser_la_décomposition_dans_les_littéraux_de_tableau"><a href="#utiliser_la_décomposition_dans_les_littéraux_de_tableau">Utiliser la décomposition dans les littéraux de tableau</a></h3><div class="section-content"><h4 id="améliorer_les_littéraux_de_tableau">Améliorer les littéraux de tableau</h4> <p>À l'heure actuelle, sans la décomposition, si on a un tableau et qu'on souhaite créer un nouveau tableau composé du premier, on ne peut pas utiliser un littéral de tableau et il faut utiliser des fonctions comme <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/push"><code>push()</code></a>, <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/splice"><code>splice()</code></a>, <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/concat"><code>concat()</code></a>, etc. Avec la syntaxe de décomposition, cela devient plus succinct :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var articulations = ["épaules", "genoux"]; var corps = ["têtes", ...articulations, "bras", "pieds"]; // ["têtes", "épaules", "genoux", "bras", "pieds"] </code></pre></div> <p>Comme pour les fonctions, la syntaxe peut être utilisé plusieurs fois.</p> <h4 id="copier_un_tableau">Copier un tableau</h4> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var arr = [1, 2, 3]; var arr2 = [...arr]; arr2.push(4); console.log(arr2); // [1, 2, 3, 4] console.log(arr); // [1, 2, 3] (inchangé) </code></pre></div> <div class="notecard note"> <p><strong>Note :</strong> Lorsqu'on utilise la décomposition pour copier un tableau, celle-ci ne s'applique qu'au premier niveau de profondeur. Par conséquent, il peut ne pas convenir pour la copie des tableaux multidimensionnels (des tableaux imbriqués dans d'autres tableaux) comme le montre l'exemple suivant (il en va de même avec <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign"><code>Object.assign()</code></a> et la décomposition).</p> </div> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var a = [[1], [2], [3]]; var b = [...a]; // b vaut [[1], [2], [3]] b.shift().shift(); // *a* vaut désormais [[], [2], [3]]; </code></pre></div> <h4 id="une_meilleure_façon_de_concaténer_des_tableaux">Une meilleure façon de concaténer des tableaux</h4> <p><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/concat"><code>concat</code></a> est souvent utilisé afin de concaténer un tableau à la suite d'une autre. Avec ES5, on aurait le code suivant :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var arr1 = [0, 1, 2]; var arr2 = [3, 4, 5]; // On ajoute les éléments de arr2 après ceux de arr1 var nouveauTableau = arr1.concat(arr2); </code></pre></div> <p>Avec ES2015 et la décomposition, on peut écrire :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var arr1 = [0, 1, 2]; var arr2 = [3, 4, 5]; arr1 = [...arr1, ...arr2]; // arr1 vaut [0, 1, 2, 3, 4, 5] </code></pre></div> <p><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift"><code>unshift</code></a> est souvent utilisé afin d'insérer des valeurs d'un tableau au début d'un autre tableau. Avec ES5, on peut écrire :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var arr1 = [0, 1, 2]; var arr2 = [3, 4, 5]; // On ajoute tous les éléments // de arr2 au début de arr1 Array.prototype.unshift.apply(arr1, arr2); // arr1 vaut [3, 4, 5, 0, 1, 2] </code></pre></div> <p>Avec ES2015 et la décomposition, on peut écrire :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var arr1 = [4, 5, 6]; var arr2 = [1, 2, 3]; arr1 = [...arr2, ...arr1]; // arr1 vaut désormais [1, 2, 3, 4, 5, 6] </code></pre></div> <div class="notecard note"> <p><strong>Note :</strong> Il y a une différence avec <code>unshift()</code> : ici, on crée un nouveau tableau qui est affecté à <code>arr1</code>, le tableau original de <code>arr1</code> n'est pas modifié "sur place".</p> </div></div></section><section aria-labelledby="utiliser_la_décomposition_avec_les_littéraux_objet"><h3 id="utiliser_la_décomposition_avec_les_littéraux_objet"><a href="#utiliser_la_décomposition_avec_les_littéraux_objet">Utiliser la décomposition avec les littéraux objet</a></h3><div class="section-content"><p><a href="https://github.com/tc39/proposal-object-rest-spread" class="external" target="_blank">La proposition relative à la décomposition des propriétés (actuellement au stade de proposition de niveau 4)</a> vise à ajouter la décomposition des propriétés pour <a href="/fr/docs/Web/JavaScript/Reference/Operators/Object_initializer">les littéraux objets</a>. Cela permet de copier les propriétés énumérables directement rattachées à un objet source sur un nouvel objet.</p> <p>Le clonage superficiel (qui ne rattache pas le prototype) ou la fusion d'objets peut donc être obtenue avec une syntaxe plus concise que celle utilisant <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign"><code>Object.assign()</code></a>.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var profil = { prenom: "Sarah", profilComplet: false }; var profilMisAJour = { nom: "Dupont", profilComplet: true }; var clone = { ...profil }; // Object { prenom: 'Sarah', profilComplet: false } var fusion = { ...profil, ...profilMisAJour }; // Object { prenom: 'Sarah', nom: 'Dupont', profilComplet: true }; </code></pre></div> <p>On notera que <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign"><code>Object.assign()</code></a> déclenche <a href="/fr/docs/Web/JavaScript/Reference/Functions/set">les mutateurs</a>, ce qui n'est pas le cas pour la syntaxe de décomposition.</p> <p>Il n'est pas possible de remplacer ou de recopier le comportement de la fonction <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign"><code>Object.assign()</code></a> :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var profil = { prenom: 'Sarah', profilComplet: false }; var profilMisAJour = { nom: 'Dupont', profilComplet: true }; const fusionner = ( ...objets) => {...objets}; var nouveauProfil = fusionner(profil, profilMisAJour); // Object { 0: { prenom: 'Sarah', profilComplet: false }, 1: { nom: 'Dupont', profilComplet: true } } var autreNouveauProfil = fusion({}, obj1, obj2); // Object { 0: {}, 1: { prenom: 'Sarah', profilComplet: false }, 2: { nom: 'Dupont', profilComplet: true } } </code></pre></div> <p>Dans l'exemple précédent, la syntaxe de décomposition ne fonctionne pas comme on pourrait s'y attendre : il décompose les arguments en un tableau grâce au paramètre du reste.</p></div></section><section aria-labelledby="la_décomposition_ne_sapplique_quaux_itérables"><h3 id="la_décomposition_ne_sapplique_quaux_itérables"><a href="#la_décomposition_ne_sapplique_quaux_itérables">La décomposition ne s'applique qu'aux itérables</a></h3><div class="section-content"><p>Pour rappel : la syntaxe de décomposition ne s'applique qu'<a href="/fr/docs/Web/JavaScript/Reference/Iteration_protocols">aux objets itérables</a> :</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>var obj = { clé1: "valeur1" }; function maFonction(x) { console.log(x); // undefined } maFonction(...obj); var args = [...obj]; console.log(args, args.length); //[] 0 </code></pre></div></div></section><section aria-labelledby="utiliser_la_décomposition_avec_de_nombreuses_valeurs"><h3 id="utiliser_la_décomposition_avec_de_nombreuses_valeurs"><a href="#utiliser_la_décomposition_avec_de_nombreuses_valeurs">Utiliser la décomposition avec de nombreuses valeurs</a></h3><div class="section-content"><p>Lorsqu'on utilise la décomposition (comme dans les exemples précédents), il faut faire attention à ne pas dépasser le nombre maximal d'arguments du moteur JavaScript. En effet, la décomposition place toutes les valeurs sources dans la pile. Pour plus d'informations, consulter <a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply"><code>Function.prototype.apply</code></a>.</p></div></section><section aria-labelledby="les_paramètres_du_reste"><h2 id="les_paramètres_du_reste"><a href="#les_paramètres_du_reste">Les paramètres du reste</a></h2><div class="section-content"><p>La syntaxe des paramètres du reste ressemble à la syntaxe de décomposition mais est utilisée afin de destructurer des tableaux et des objets. D'une certaine façon, la syntaxe du reste est l'opposée de la décomposition : la première collecte plusieurs éléments et les condense en un seul élément tandis que la seconde explose les éléments. Pour plus d'informations, voir la page sur <a href="/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters">les paramètres du reste</a>.</p></div></section><h2 id="spécifications"><a href="#spécifications">Spécifications</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-SpreadElement">ECMAScript® 2025 Language Specification <br/><small># prod-SpreadElement</small></a></td></tr><tr><td><a href="https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-ArgumentList">ECMAScript® 2025 Language Specification <br/><small># prod-ArgumentList</small></a></td></tr><tr><td><a href="https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-PropertyDefinition">ECMAScript® 2025 Language Specification <br/><small># prod-PropertyDefinition</small></a></td></tr></tbody></table><h2 id="compatibilité_des_navigateurs"><a href="#compatibilité_des_navigateurs">Compatibilité des navigateurs</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="voir_aussi"><h2 id="voir_aussi"><a href="#voir_aussi">Voir aussi</a></h2><div class="section-content"><ul> <li><a href="/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters">Paramètres du reste</a></li> <li><a href="https://tech.mozfr.org/post/2015/06/05/ES6-en-details-%3A-la-decomposition" class="external" target="_blank">Le billet de ES6 en détails sur la décomposition</a></li> <li><a href="/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply"><code>Function.prototype.apply()</code></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 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contributors. Content available under <a href="/fr/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/fr/docs/Web/JavaScript/Reference/Operators/Spread_syntax","doc":{"body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>La <strong>syntaxe de décomposition</strong> permet d'étendre un itérable (par exemple une expression de tableau ou une chaîne de caractères) en lieu et place de plusieurs arguments (pour les appels de fonctions) ou de plusieurs éléments (pour les littéraux de tableaux) ou de paires clés-valeurs (pour les littéraux d'objets).</p>"}},{"type":"prose","value":{"id":"exemple_interactif","title":"Exemple interactif","isH3":false,"content":"<interactive-example name=\"JavaScript Demo: Expressions - Spread syntax\"></interactive-example>\n<div class=\"code-example\"><pre class=\"brush: js interactive-example notranslate\"><code>function sum(x, y, z) {\n return x + y + z;\n}\n\nconst numbers = [1, 2, 3];\n\nconsole.log(sum(...numbers));\n// Expected output: 6\n\nconsole.log(sum.apply(null, numbers));\n// Expected output: 6\n</code></pre></div>"}},{"type":"prose","value":{"id":"syntaxe","title":"Syntaxe","isH3":false,"content":"<p>Pour l'utilisation de la décomposition dans les appels de fonction :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>f(...objetIterable);\n</code></pre></div>\n<p>Pour les littéraux de tableaux :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>[...objetIterable, 4, 5, 6];\n</code></pre></div>\n<p>Pour les littéraux objets (nouvelle fonctionnalité pour ECMAScript, actuellement en proposition de niveau 4, finalisée) :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>let objClone = { ...obj };\n</code></pre></div>"}},{"type":"prose","value":{"id":"exemples","title":"Exemples","isH3":false,"content":""}},{"type":"prose","value":{"id":"utiliser_la_décomposition_dans_les_appels_de_fonction","title":"Utiliser la décomposition dans les appels de fonction","isH3":true,"content":"<h4 id=\"améliorer_la_fonction_apply\">Améliorer la fonction <code>apply()</code></h4>\n<p>Il arrive souvent qu'on veuille utiliser <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply\"><code>Function.prototype.apply</code></a> avec un tableau parmi les arguments de la fonction utilisée :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function f(x, y, z) {}\nvar args = [0, 1, 2];\nf.apply(null, args);\n</code></pre></div>\n<p>avec la décomposition, on peut désormais écrire :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function f(x, y, z) {}\nvar args = [0, 1, 2];\nf(...args);\n</code></pre></div>\n<p>Tout argument passé à une fonction peut être décomposé grâce à cette syntaxe et cette syntaxe peut être utilisée pour plusieurs arguments.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function f(v, w, x, y, z) {}\nvar args = [0, 1];\nf(-1, ...args, 2, ...[3]);\n</code></pre></div>\n<h4 id=\"utiliser_apply_avec_lopérateur_new\">Utiliser <code>apply()</code> avec l'opérateur <code>new</code></h4>\n<p>Avec ES5, il n'est pas possible d'utiliser <code>new</code> avec <code>apply</code> (selon ES5 <code>apply</code> effectue un appel <code>[[Call]]</code> et pas un appel <code>[[Construct]]</code>). Avec ES2015, la syntaxe de décomposition permet de le faire naturellement :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var champsDate = lireChampsDate(maBaseDeDonnées);\nvar d = new Date(...champsDate);\n</code></pre></div>\n<p>Afin d'utiliser <code>new</code> avec un tableau de paramètres, sans utiliser la décomposition, il faudrait l'employer indirectement grâce à une application partielle :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>function applyAndNew(constructor, args) {\n function partial() {\n return constructor.apply(this, args);\n }\n if (typeof constructor.prototype === \"object\") {\n partial.prototype = Object.create(constructor.prototype);\n }\n return partial;\n}\n\nfunction monConstructeur() {\n console.log(\"arguments.length: \" + arguments.length);\n console.log(arguments);\n this.prop1 = \"val1\";\n this.prop2 = \"val2\";\n}\n\nvar mesArguments = [\"bi\", \"bop\", \"bup\", null];\nvar monConstructeurAvecArguments = applyAndNew(monConstructor, mesArguments);\n\nconsole.log(new monConstructeurAvecArguments());\n// (log fourni par monConstructeur): arguments.length: 4\n// (log fourni par monConstructeur): [\"bi\", \"bop\", \"bup\", null]\n// (log fourni par \"new monConstructeurAvecArguments\"): {prop1: \"val1\", prop2: \"val2\"}\n</code></pre></div>"}},{"type":"prose","value":{"id":"utiliser_la_décomposition_dans_les_littéraux_de_tableau","title":"Utiliser la décomposition dans les littéraux de tableau","isH3":true,"content":"<h4 id=\"améliorer_les_littéraux_de_tableau\">Améliorer les littéraux de tableau</h4>\n<p>À l'heure actuelle, sans la décomposition, si on a un tableau et qu'on souhaite créer un nouveau tableau composé du premier, on ne peut pas utiliser un littéral de tableau et il faut utiliser des fonctions comme <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/push\"><code>push()</code></a>, <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/splice\"><code>splice()</code></a>, <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/concat\"><code>concat()</code></a>, etc. Avec la syntaxe de décomposition, cela devient plus succinct :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var articulations = [\"épaules\", \"genoux\"];\nvar corps = [\"têtes\", ...articulations, \"bras\", \"pieds\"];\n// [\"têtes\", \"épaules\", \"genoux\", \"bras\", \"pieds\"]\n</code></pre></div>\n<p>Comme pour les fonctions, la syntaxe peut être utilisé plusieurs fois.</p>\n<h4 id=\"copier_un_tableau\">Copier un tableau</h4>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var arr = [1, 2, 3];\nvar arr2 = [...arr];\narr2.push(4);\n\nconsole.log(arr2); // [1, 2, 3, 4]\nconsole.log(arr); // [1, 2, 3] (inchangé)\n</code></pre></div>\n<div class=\"notecard note\">\n<p><strong>Note :</strong>\nLorsqu'on utilise la décomposition pour copier un tableau, celle-ci ne s'applique qu'au premier niveau de profondeur. Par conséquent, il peut ne pas convenir pour la copie des tableaux multidimensionnels (des tableaux imbriqués dans d'autres tableaux) comme le montre l'exemple suivant (il en va de même avec <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\"><code>Object.assign()</code></a> et la décomposition).</p>\n</div>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var a = [[1], [2], [3]];\nvar b = [...a]; // b vaut [[1], [2], [3]]\n\nb.shift().shift(); // *a* vaut désormais [[], [2], [3]];\n</code></pre></div>\n<h4 id=\"une_meilleure_façon_de_concaténer_des_tableaux\">Une meilleure façon de concaténer des tableaux</h4>\n<p><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/concat\"><code>concat</code></a> est souvent utilisé afin de concaténer un tableau à la suite d'une autre. Avec ES5, on aurait le code suivant :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var arr1 = [0, 1, 2];\nvar arr2 = [3, 4, 5];\n// On ajoute les éléments de arr2 après ceux de arr1\nvar nouveauTableau = arr1.concat(arr2);\n</code></pre></div>\n<p>Avec ES2015 et la décomposition, on peut écrire :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var arr1 = [0, 1, 2];\nvar arr2 = [3, 4, 5];\narr1 = [...arr1, ...arr2]; // arr1 vaut [0, 1, 2, 3, 4, 5]\n</code></pre></div>\n<p><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift\"><code>unshift</code></a> est souvent utilisé afin d'insérer des valeurs d'un tableau au début d'un autre tableau. Avec ES5, on peut écrire :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var arr1 = [0, 1, 2];\nvar arr2 = [3, 4, 5];\n// On ajoute tous les éléments\n// de arr2 au début de arr1\nArray.prototype.unshift.apply(arr1, arr2); // arr1 vaut [3, 4, 5, 0, 1, 2]\n</code></pre></div>\n<p>Avec ES2015 et la décomposition, on peut écrire :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var arr1 = [4, 5, 6];\nvar arr2 = [1, 2, 3];\narr1 = [...arr2, ...arr1];\n// arr1 vaut désormais [1, 2, 3, 4, 5, 6]\n</code></pre></div>\n<div class=\"notecard note\">\n<p><strong>Note :</strong>\nIl y a une différence avec <code>unshift()</code> : ici, on crée un nouveau tableau qui est affecté à <code>arr1</code>, le tableau original de <code>arr1</code> n'est pas modifié \"sur place\".</p>\n</div>"}},{"type":"prose","value":{"id":"utiliser_la_décomposition_avec_les_littéraux_objet","title":"Utiliser la décomposition avec les littéraux objet","isH3":true,"content":"<p><a href=\"https://github.com/tc39/proposal-object-rest-spread\" class=\"external\" target=\"_blank\">La proposition relative à la décomposition des propriétés (actuellement au stade de proposition de niveau 4)</a> vise à ajouter la décomposition des propriétés pour <a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Object_initializer\">les littéraux objets</a>. Cela permet de copier les propriétés énumérables directement rattachées à un objet source sur un nouvel objet.</p>\n<p>Le clonage superficiel (qui ne rattache pas le prototype) ou la fusion d'objets peut donc être obtenue avec une syntaxe plus concise que celle utilisant <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\"><code>Object.assign()</code></a>.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var profil = { prenom: \"Sarah\", profilComplet: false };\nvar profilMisAJour = { nom: \"Dupont\", profilComplet: true };\n\nvar clone = { ...profil };\n// Object { prenom: 'Sarah', profilComplet: false }\n\nvar fusion = { ...profil, ...profilMisAJour };\n// Object { prenom: 'Sarah', nom: 'Dupont', profilComplet: true };\n</code></pre></div>\n<p>On notera que <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\"><code>Object.assign()</code></a> déclenche <a href=\"/fr/docs/Web/JavaScript/Reference/Functions/set\">les mutateurs</a>, ce qui n'est pas le cas pour la syntaxe de décomposition.</p>\n<p>Il n'est pas possible de remplacer ou de recopier le comportement de la fonction <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\"><code>Object.assign()</code></a> :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var profil = { prenom: 'Sarah', profilComplet: false };\nvar profilMisAJour = { nom: 'Dupont', profilComplet: true };\n\nconst fusionner = ( ...objets) => {...objets};\nvar nouveauProfil = fusionner(profil, profilMisAJour);\n// Object { 0: { prenom: 'Sarah', profilComplet: false }, 1: { nom: 'Dupont', profilComplet: true } }\n\nvar autreNouveauProfil = fusion({}, obj1, obj2);\n// Object { 0: {}, 1: { prenom: 'Sarah', profilComplet: false }, 2: { nom: 'Dupont', profilComplet: true } }\n</code></pre></div>\n<p>Dans l'exemple précédent, la syntaxe de décomposition ne fonctionne pas comme on pourrait s'y attendre : il décompose les arguments en un tableau grâce au paramètre du reste.</p>"}},{"type":"prose","value":{"id":"la_décomposition_ne_sapplique_quaux_itérables","title":"La décomposition ne s'applique qu'aux itérables","isH3":true,"content":"<p>Pour rappel : la syntaxe de décomposition ne s'applique qu'<a href=\"/fr/docs/Web/JavaScript/Reference/Iteration_protocols\">aux objets itérables</a> :</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>var obj = { clé1: \"valeur1\" };\nfunction maFonction(x) {\n console.log(x); // undefined\n}\nmaFonction(...obj);\nvar args = [...obj];\nconsole.log(args, args.length); //[] 0\n</code></pre></div>"}},{"type":"prose","value":{"id":"utiliser_la_décomposition_avec_de_nombreuses_valeurs","title":"Utiliser la décomposition avec de nombreuses valeurs","isH3":true,"content":"<p>Lorsqu'on utilise la décomposition (comme dans les exemples précédents), il faut faire attention à ne pas dépasser le nombre maximal d'arguments du moteur JavaScript. En effet, la décomposition place toutes les valeurs sources dans la pile. Pour plus d'informations, consulter <a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply\"><code>Function.prototype.apply</code></a>.</p>"}},{"type":"prose","value":{"id":"les_paramètres_du_reste","title":"Les paramètres du reste","isH3":false,"content":"<p>La syntaxe des paramètres du reste ressemble à la syntaxe de décomposition mais est utilisée afin de destructurer des tableaux et des objets. D'une certaine façon, la syntaxe du reste est l'opposée de la décomposition : la première collecte plusieurs éléments et les condense en un seul élément tandis que la seconde explose les éléments. Pour plus d'informations, voir la page sur <a href=\"/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters\">les paramètres du reste</a>.</p>"}},{"type":"specifications","value":{"id":"spécifications","title":"Spécifications","isH3":false,"specifications":[{"bcdSpecificationURL":"https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-SpreadElement","title":"ECMAScript® 2025 Language Specification"},{"bcdSpecificationURL":"https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-ArgumentList","title":"ECMAScript® 2025 Language Specification"},{"bcdSpecificationURL":"https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-PropertyDefinition","title":"ECMAScript® 2025 Language Specification"}],"query":"javascript.operators.spread"}},{"type":"browser_compatibility","value":{"id":"compatibilité_des_navigateurs","title":"Compatibilité des navigateurs","isH3":false,"query":"javascript.operators.spread"}},{"type":"prose","value":{"id":"voir_aussi","title":"Voir aussi","isH3":false,"content":"<ul>\n<li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters\">Paramètres du reste</a></li>\n<li><a href=\"https://tech.mozfr.org/post/2015/06/05/ES6-en-details-%3A-la-decomposition\" class=\"external\" target=\"_blank\">Le billet de ES6 en détails sur la décomposition</a></li>\n<li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Function/apply\"><code>Function.prototype.apply()</code></a></li>\n</ul>"}}],"isActive":true,"isMarkdown":true,"isTranslated":true,"locale":"fr","mdn_url":"/fr/docs/Web/JavaScript/Reference/Operators/Spread_syntax","modified":"2025-02-17T16:01:10.000Z","native":"Français","noIndexing":false,"other_translations":[{"locale":"en-US","title":"Spread syntax (...)","native":"English (US)"},{"locale":"de","title":"Spread-Syntax (...)","native":"Deutsch"},{"locale":"es","title":"Sintaxis Spread","native":"Español"},{"locale":"ja","title":"スプレッド構文","native":"日本語"},{"locale":"ko","title":"전개 구문","native":"한국어"},{"locale":"pt-BR","title":"Sintaxe de Espalhamento","native":"Português (do Brasil)"},{"locale":"ru","title":"Spread syntax","native":"Русский"},{"locale":"zh-CN","title":"展开语法","native":"中文 (简体)"}],"pageTitle":"Syntaxe de décomposition - JavaScript | MDN","parents":[{"uri":"/fr/docs/Web","title":"Technologies web pour développeurs"},{"uri":"/fr/docs/Web/JavaScript","title":"JavaScript"},{"uri":"/fr/docs/Web/JavaScript/Reference","title":"Référence JavaScript"},{"uri":"/fr/docs/Web/JavaScript/Reference/Operators","title":"Expressions et opérateurs"},{"uri":"/fr/docs/Web/JavaScript/Reference/Operators/Spread_syntax","title":"Syntaxe de décomposition"}],"popularity":null,"short_title":"Syntaxe de décomposition","sidebarHTML":"<ol><li class=\"section\"><a href=\"/fr/docs/Web/JavaScript\">JavaScript</a></li><li class=\"section\">Tutoriels</li><li class=\"toggle\"><details><summary>Beginner's tutorials</summary><ol><li><a href=\"/fr/docs/Learn_web_development/Getting_started/Your_first_website/Adding_interactivity\">Your first website: Adding interactivity</a></li><li><a href=\"/fr/docs/Learn_web_development/Core/Scripting\">Dynamic scripting with JavaScript</a></li><li><a href=\"/fr/docs/Learn_web_development/Core/Frameworks_libraries\">JavaScript frameworks and libraries</a></li></ol></details></li><li class=\"toggle\"><details><summary>Guide JavaScript</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Guide/Introduction\">Introduction</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Grammar_and_types\">Types et grammaire</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Control_flow_and_error_handling\">Contrôle du flux et gestion des erreurs</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Loops_and_iteration\">Boucles et itération</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Functions\">Fonctions</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Expressions_and_operators\">Expressions et opérateurs</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Numbers_and_strings\">Numbers and strings</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Guide/Representing_dates_times\" class=\"only-in-en-us\">Representing dates & times</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Regular_expressions\">Expressions rationnelles</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Indexed_collections\">Collections indexées</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Keyed_collections\">Collections avec clés</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Working_with_objects\">Manipuler les objets</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Guide/Using_classes\" class=\"only-in-en-us\">Using classes</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Using_promises\">Utiliser les promesses</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Typed_arrays\">Tableaux typés en JavaScript</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Iterators_and_generators\">Itérateurs et générateurs</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Guide/Internationalization\" class=\"only-in-en-us\">Internationalization</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Meta_programming\">Métaprogrammation</a></li><li><a href=\"/fr/docs/Web/JavaScript/Guide/Modules\">Modules JavaScript</a></li></ol></details></li><li class=\"toggle\"><details><summary>Intermédiaire</summary><ol><li><a href=\"/fr/docs/Learn_web_development/Extensions/Advanced_JavaScript_objects\">Advanced JavaScript objects</a></li><li><a href=\"/fr/docs/Learn_web_development/Extensions/Async_JS\">Asynchronous JavaScript</a></li><li><a href=\"/fr/docs/Learn_web_development/Extensions/Client-side_APIs\">Client-side web APIs</a></li><li><a href=\"/fr/docs/Web/JavaScript/Language_overview\">Language overview</a></li><li><a href=\"/fr/docs/Web/JavaScript/Data_structures\">Structures de données en JavaScript</a></li><li><a href=\"/fr/docs/Web/JavaScript/Equality_comparisons_and_sameness\">Différents tests d'égalité</a></li><li><a href=\"/fr/docs/Web/JavaScript/Enumerability_and_ownership_of_properties\">Rattachement des propriétés</a></li><li><a href=\"/fr/docs/Web/JavaScript/Closures\">Fermetures (closures)</a></li></ol></details></li><li class=\"toggle\"><details><summary>Avancé</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Inheritance_and_the_prototype_chain\">L'héritage et la chaîne de prototypes</a></li><li><a href=\"/fr/docs/Web/JavaScript/Memory_management\">Gestion de la mémoire</a></li><li><a href=\"/fr/docs/Web/JavaScript/Event_loop\">Concurrence et boucle des évènements</a></li></ol></details></li><li class=\"section\"><a href=\"/fr/docs/Web/JavaScript/Reference\">Références</a></li><li class=\"toggle\"><details><summary>Objets natifs</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects\">Aperçu</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/AggregateError\">AggregateError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Array\">Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer\">ArrayBuffer</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction\">AsyncFunction</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator\" class=\"only-in-en-us\">AsyncGenerator</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction\" class=\"only-in-en-us\">AsyncGeneratorFunction</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator\" class=\"only-in-en-us\">AsyncIterator</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Atomics\">Atomics</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/BigInt\">BigInt</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array\">BigInt64Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array\">BigUint64Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Boolean\">Boolean</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/DataView\">DataView</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Date\">Date</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/decodeURI\">decodeURI()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent\">decodeURIComponent()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/encodeURI\">encodeURI()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent\">encodeURIComponent()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Error\">Error</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/escape\">escape()</a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n<span class=\"visually-hidden\">Obsolète</span>\n</abbr></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/eval\">eval()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/EvalError\">EvalError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry\">FinalizationRegistry</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float16Array\" class=\"only-in-en-us\">Float16Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Float32Array\">Float32Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Float64Array\">Float64Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Function\">Function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Generator\">Generator</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction\">GeneratorFunction</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/globalThis\">globalThis</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Infinity\">Infinity</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Int16Array\">Int16Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Int32Array\">Int32Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Int8Array\">Int8Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/InternalError\">InternalError</a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n<span class=\"visually-hidden\">Non standard</span>\n</abbr></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Intl\">Intl</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/isFinite\">isFinite()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/isNaN\">isNaN()</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/Iterator\" class=\"only-in-en-us\">Iterator</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/JSON\">JSON</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Map\">Map</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Math\">Math</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/NaN\">NaN</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Number\">Number</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Object\">Object</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/parseFloat\">parseFloat()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/parseInt\">parseInt()</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Promise\">Promise</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Proxy\">Proxy</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/RangeError\">RangeError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError\">ReferenceError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Reflect\">Reflect</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/RegExp\">RegExp</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Set\">Set</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer\">SharedArrayBuffer</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/String\">String</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Symbol\">Symbol</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError\">SyntaxError</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal\" class=\"only-in-en-us\">Temporal</a><abbr class=\"icon icon-experimental\" title=\"Expérimental. Le comportement attendu pourrait évoluer à l'avenir.\">\n<span class=\"visually-hidden\">Expérimental</span>\n</abbr></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/TypedArray\">TypedArray</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/TypeError\">TypeError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array\">Uint16Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array\">Uint32Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array\">Uint8Array</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray\">Uint8ClampedArray</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/undefined\">undefined</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/unescape\">unescape()</a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n<span class=\"visually-hidden\">Obsolète</span>\n</abbr></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/URIError\">URIError</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakMap\">WeakMap</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakRef\">WeakRef</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Global_Objects/WeakSet\">WeakSet</a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Expressions et opérateurs</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators\">Aperçu</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Addition\">Addition (+)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Addition_assignment\">Affectation après addition (+=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Assignment\">Assignement (=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/async_function\">Expression async function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/async_function*\">Expression async function*</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/await\">await</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_AND\">ET binaire (&)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment\">Affectation après ET binaire (&=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT\">NON binaire (~)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_OR\">OU binaire (|)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment\">Affectation après OU binaire (|=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR\">OU exclusif binaire (^)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment\">Affectation après OU exclusif binaire (^=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/class\">class</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Comma_operator\">L'opérateur virgule</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Conditional_operator\">L'opérateur conditionnel</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Decrement\">Décrémentation (--)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/delete\">L'opérateur delete</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment\">Affecter par décomposition</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Division\">Division (/)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Division_assignment\">Affectation après division (/=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Equality\">Égalité (==)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Exponentiation\">Exponentiation (**)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Exponentiation_assignment\">Affectation après exponentiation (**=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/function\">L'opérateur function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/function*\">Expression function*</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Greater_than\">Supérieur strict (>)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Greater_than_or_equal\">Supérieur ou égal (>=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Grouping\">Opérateur de groupement</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/import.meta\">import.meta</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/import\">import</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/in\">L'opérateur in</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Increment\">Incrémentation (++)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Inequality\">Inégalité (!=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/instanceof\">instanceof</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Left_shift\">Décalage binaire à gauche (<<)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment\">Affectation après décalage à gauche (<<=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Less_than\">Inférieur strict (<)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Less_than_or_equal\">Inférieur ou égal (<=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Logical_AND\">ET logique (&&)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Logical_AND_assignment\">Affectation après ET logique (&&=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Logical_NOT\">NON logique (!)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Logical_OR\">OU logique (||)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Logical_OR_assignment\">Affectation après OU logique (||=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Multiplication\">Multiplication (*)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment\">Affectation après multiplication (*=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/new\">L'opérateur new</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/new.target\">new.target</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/null\">null</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment\">Affectation après coalescence des nuls (??=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing\">Opérateur de coalescence des nuls (Nullish coalescing operator)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Object_initializer\">Initialisateur d'objet</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Operator_precedence\">Précédence des opérateurs</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Optional_chaining\">Chaînage optionnel (optional chaining)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Property_accessors\">Accesseurs de propriétés</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Remainder\">Reste (%)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Remainder_assignment\">Affectation après reste (%=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Right_shift\">Décalage binaire à droite (>>)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment\">Affectation après décalage à droite (>>=)</a></li><li><em><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Spread_syntax\" aria-current=\"page\">Syntaxe de décomposition</a></em></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Strict_equality\">Égalité stricte (===)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Strict_inequality\">Inégalité stricte (!==)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Subtraction\">Soustraction (-)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Subtraction_assignment\">Affectation après soustraction (-=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/super\">super</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/this\">L'opérateur this</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/typeof\">L'opérateur typeof</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Unary_negation\">Négation unaire (-)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Unary_plus\">Plus unaire (+)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift\">Décalage binaire à droite non-signé (>>>)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift_assignment\">Affectation après décalage à droite non signé (>>>=)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/void\">L'opérateur void</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/yield\">yield</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Operators/yield*\">yield*</a></li></ol></details></li><li class=\"toggle\"><details><summary>Instructions et déclarations</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements\">Aperçu</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/async_function\">async function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/async_function*\">async function*</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/block\">bloc</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/break\">break</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/class\">class</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/const\">const</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/continue\">continue</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/debugger\">debugger</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/do...while\">do...while</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/Empty\">vide</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/export\">export</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Statements/Expression_statement\" class=\"only-in-en-us\">Expression statement</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/for\">for</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/for-await...of\">for await...of</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/for...in\">for...in</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/for...of\">for...of</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/function\">function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/function*\">function*</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/if...else\">if…else</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/import\">import</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/label\">label</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/let\">let</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/return\">return</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/switch\">switch</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/throw\">throw</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/try...catch\">try...catch</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/var\">var</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/while\">while</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Statements/with\">with</a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n<span class=\"visually-hidden\">Obsolète</span>\n</abbr></li></ol></details></li><li class=\"toggle\"><details><summary>Fonctions</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions\">Aperçu</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/Arrow_functions\">Fonctions fléchées</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/Default_parameters\">Valeurs par défaut des arguments</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/get\">L'opérateur get</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/Method_definitions\">Définir une méthode</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/rest_parameters\">Paramètres du reste (Rest parameters)</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/set\">L'opérateur set</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Functions/arguments\">arguments</a></li></ol></details></li><li class=\"toggle\"><details><summary>Classes</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes\">Aperçu</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes/constructor\">constructor</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes/extends\">extends</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes/Private_properties\">Propriétés privées</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes/Public_class_fields\">Champs de classe publics</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Classes/static\">static</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Classes/Static_initialization_blocks\" class=\"only-in-en-us\">Static initialization blocks</a></li></ol></details></li><li class=\"toggle\"><details><summary>Expressions rationnelles</summary><ol><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions\" class=\"only-in-en-us\">Aperçu</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Backreference\" class=\"only-in-en-us\">Backreference: \\1, \\2</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Capturing_group\" class=\"only-in-en-us\">Capturing group: (...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape\" class=\"only-in-en-us\">Character class escape: \\d, \\D, \\w, \\W, \\s, \\S</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_class\" class=\"only-in-en-us\">Character class: [...], [^...]</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_escape\" class=\"only-in-en-us\">Character escape: \\n, \\u{...}</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Disjunction\" class=\"only-in-en-us\">Disjunction: |</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Input_boundary_assertion\" class=\"only-in-en-us\">Input boundary assertion: ^, $</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Literal_character\" class=\"only-in-en-us\">Literal character: a, b</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Lookahead_assertion\" class=\"only-in-en-us\">Lookahead assertion: (?=...), (?!...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion\" class=\"only-in-en-us\">Lookbehind assertion: (?<=...), (?<!...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Modifier\" class=\"only-in-en-us\">Modifier: (?ims-ims:...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Named_backreference\" class=\"only-in-en-us\">Named backreference: \\k<name></a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Named_capturing_group\" class=\"only-in-en-us\">Named capturing group: (?<name>...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Non-capturing_group\" class=\"only-in-en-us\">Non-capturing group: (?:...)</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Quantifier\" class=\"only-in-en-us\">Quantifier: *, +, ?, {n}, {n,}, {n,m}</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape\">Échappement des propriétés Unicode</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Wildcard\" class=\"only-in-en-us\">Wildcard: .</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Word_boundary_assertion\" class=\"only-in-en-us\">Word boundary assertion: \\b, \\B</a></li></ol></details></li><li class=\"toggle\"><details><summary>Erreurs</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors\">Aperçu</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Promise_any_all_rejected\" class=\"only-in-en-us\">AggregateError: No Promise in Promise.any was resolved</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Property_access_denied\">Error: Permission denied to access property \"x\"</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Too_much_recursion\">InternalError: too much recursion</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Not_a_valid_code_point\">RangeError: argument is not a valid code point</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/BigInt_division_by_zero\">RangeError: BigInt division by zero</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/BigInt_negative_exponent\">RangeError: BigInt negative exponent</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Form_must_be_one_of\" class=\"only-in-en-us\">RangeError: form must be one of 'NFC', 'NFD', 'NFKC', or 'NFKD'</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_array_length\">RangeError: invalid array length</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_date\">RangeError: invalid date</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Precision_range\">RangeError: precision is out of range</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Bad_radix\">RangeError: radix must be an integer</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Resulting_string_too_large\">RangeError: repeat count must be less than infinity</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Negative_repetition_count\">RangeError: repeat count must be non-negative</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_be_converted_to_BigInt_because_it_isnt_an_integer\">RangeError: x can't be converted to BigInt because it isn't an integer</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Not_defined\">ReferenceError: \"x\" is not defined</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Undeclared_var\">ReferenceError: assignment to undeclared variable \"x\"</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init\">ReferenceError: can't access lexical declaration 'X' before initialization</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage\">ReferenceError: deprecated caller or arguments usage</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Super_not_called\" class=\"only-in-en-us\">ReferenceError: must call super constructor before using 'this' in derived class constructor</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Super_called_twice\" class=\"only-in-en-us\">ReferenceError: super() called twice in derived class constructor</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_strict_arguments_eval\" class=\"only-in-en-us\">SyntaxError: 'arguments'/'eval' can't be defined or assigned to in strict mode code</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_literal\">SyntaxError: \"0\"-prefixed octal literals and octal escape seq. are deprecated</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Strict_non_simple_params\">SyntaxError: \"use strict\" not allowed in function with \"x\" parameter</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Reserved_identifier\">SyntaxError: \"x\" is a reserved identifier</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_backslash_at_end_of_pattern\" class=\"only-in-en-us\">SyntaxError: \\ at end of pattern</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_for-of_initializer\">SyntaxError: a declaration in the head of a for-of loop can't have an initializer</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Delete_in_strict_mode\">SyntaxError: applying the 'delete' operator to an unqualified name is deprecated</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Arguments_not_allowed\" class=\"only-in-en-us\">SyntaxError: arguments is not valid in fields</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_await\" class=\"only-in-en-us\">SyntaxError: await is only valid in async functions, async generators and modules</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/await_yield_in_parameter\" class=\"only-in-en-us\">SyntaxError: await/yield expression can't be used in parameter</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_use_nullish_coalescing_unparenthesized\">SyntaxError: cannot use `??` unparenthesized within `||` and `&&` expressions</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_character_class_escape_in_class_range\" class=\"only-in-en-us\">SyntaxError: character class escape cannot be used in class range in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_continue\" class=\"only-in-en-us\">SyntaxError: continue must be inside loop</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_duplicate_capture_group_name\" class=\"only-in-en-us\">SyntaxError: duplicate capture group name in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Duplicate_parameter\" class=\"only-in-en-us\">SyntaxError: duplicate formal argument x</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_for-in_initializer\">SyntaxError: for-in loop head declarations may not have initializers</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Unnamed_function_statement\">SyntaxError: function statement requires a name</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Function_label\" class=\"only-in-en-us\">SyntaxError: functions cannot be labelled</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Either_be_both_static_or_non-static\" class=\"only-in-en-us\">SyntaxError: getter and setter for private name #x should either be both static or non-static</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Getter_no_arguments\" class=\"only-in-en-us\">SyntaxError: getter functions must have no arguments</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Identifier_after_number\">SyntaxError: identifier starts immediately after numeric literal</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Illegal_character\">SyntaxError: illegal character</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/import_decl_module_top_level\" class=\"only-in-en-us\">SyntaxError: import declarations may only appear at top level of a module</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_incomplete_quantifier\" class=\"only-in-en-us\">SyntaxError: incomplete quantifier in regular expression</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side\">ReferenceError: invalid assignment left-hand side</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_BigInt_syntax\">SyntaxError: invalid BigInt syntax</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_capture_group_name\" class=\"only-in-en-us\">SyntaxError: invalid capture group name in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_char_in_class\" class=\"only-in-en-us\">SyntaxError: invalid character in class in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_class_set_operation\" class=\"only-in-en-us\">SyntaxError: invalid class set operation in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_decimal_escape\" class=\"only-in-en-us\">SyntaxError: invalid decimal escape in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_identity_escape\" class=\"only-in-en-us\">SyntaxError: invalid identity escape in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_named_capture_reference\" class=\"only-in-en-us\">SyntaxError: invalid named capture reference in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_property_name\" class=\"only-in-en-us\">SyntaxError: invalid property name in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_range_in_character_class\" class=\"only-in-en-us\">SyntaxError: invalid range in character class</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_group\" class=\"only-in-en-us\">SyntaxError: invalid regexp group</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Bad_regexp_flag\">SyntaxError: invalid regular expression flag \"x\"</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_invalid_unicode_escape\" class=\"only-in-en-us\">SyntaxError: invalid unicode escape in regular expression</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/JSON_bad_parse\">SyntaxError: JSON.parse: bad parsing</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Label_not_found\" class=\"only-in-en-us\">SyntaxError: label not found</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_colon_after_property_id\">SyntaxError: missing : after property id</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list\">SyntaxError: missing ) after argument list</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition\">SyntaxError: missing ) after condition</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_bracket_after_list\">SyntaxError: missing ] after element list</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_function_body\">SyntaxError: missing } after function body</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_curly_after_property_list\">SyntaxError: missing } after property list</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_initializer_in_const\">SyntaxError: missing = in const declaration</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_formal_parameter\">SyntaxError: missing formal parameter</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator\">SyntaxError: missing name after . operator</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/No_variable_name\">SyntaxError: missing variable name</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_negated_char_class_with_strings\" class=\"only-in-en-us\">SyntaxError: negated character class with strings in regular expression</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_new_optional\" class=\"only-in-en-us\">SyntaxError: new keyword cannot be used with an optional chain</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_nothing_to_repeat\" class=\"only-in-en-us\">SyntaxError: nothing to repeat</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_numbers_out_of_order_in_quantifier\" class=\"only-in-en-us\">SyntaxError: numbers out of order in {} quantifier.</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Deprecated_octal_escape_sequence\" class=\"only-in-en-us\">SyntaxError: octal escape sequences can't be used in untagged template literals or in strict mode code</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Parameter_after_rest_parameter\" class=\"only-in-en-us\">SyntaxError: parameter after rest parameter</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Cant_delete_private_fields\" class=\"only-in-en-us\">SyntaxError: private fields can't be deleted</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Duplicate_proto\" class=\"only-in-en-us\">SyntaxError: property name __proto__ appears more than once in object literal</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Regex_raw_bracket\" class=\"only-in-en-us\">SyntaxError: raw bracket is not allowed in regular expression with unicode flag</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Redeclared_parameter\">SyntaxError: redeclaration of formal parameter \"x\"</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Undeclared_private_field_or_method\" class=\"only-in-en-us\">SyntaxError: reference to undeclared private field or method #x</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Rest_with_default\" class=\"only-in-en-us\">SyntaxError: rest parameter may not have a default</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Bad_return\">SyntaxError: return not in function</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Setter_one_argument\" class=\"only-in-en-us\">SyntaxError: setter functions must have one argument</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/String_literal_EOL\">SyntaxError: unterminated string literal</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_super_call\" class=\"only-in-en-us\">SyntaxError: super() is only valid in derived class constructors</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_optional_template\" class=\"only-in-en-us\">SyntaxError: tagged template cannot be used with optional chain</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Hash_outside_class\">SyntaxError: Unexpected '#' used outside of class body</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Unexpected_token\">SyntaxError: Unexpected token</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_break\" class=\"only-in-en-us\">SyntaxError: unlabeled break must be inside loop or switch</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Unparenthesized_unary_expr_lhs_exponentiation\">SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '**'</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Bad_super_prop\" class=\"only-in-en-us\">SyntaxError: use of super property/member accesses only valid within methods or eval code within methods</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma\">SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/is_not_iterable\">TypeError: 'x' is not iterable</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Unexpected_type\">TypeError: \"x\" is (not) \"y\"</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Not_a_constructor\">TypeError: \"x\" is not a constructor</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Not_a_function\">TypeError: \"x\" is not a function</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/No_non-null_object\">TypeError: \"x\" is not a non-null object</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Read-only\">TypeError: \"x\" is read-only</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/BigInt_not_serializable\" class=\"only-in-en-us\">TypeError: BigInt value can't be serialized in JSON</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Builtin_ctor_no_new\" class=\"only-in-en-us\">TypeError: calling a builtin X constructor without new is forbidden</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Get_set_missing_private\" class=\"only-in-en-us\">TypeError: can't access/set private field or method: object is not the right class</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_assign_to_property\">TypeError: can't assign to property \"x\" on \"y\": not an object</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_convert_BigInt_to_number\">TypeError: can't convert BigInt to number</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_convert_x_to_BigInt\">TypeError: can't convert x to BigInt</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible\">TypeError: can't define property \"x\": \"obj\" is not extensible</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Non_configurable_array_element\">TypeError: can't delete non-configurable array element</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_redefine_property\">TypeError: can't redefine non-configurable property \"x\"</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Cant_set_prototype\" class=\"only-in-en-us\">TypeError: can't set prototype of this object</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Cyclic_prototype\" class=\"only-in-en-us\">TypeError: can't set prototype: it would cause a prototype chain cycle</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/in_operator_no_object\">TypeError: invalid 'in' operand \"x\"</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Class_ctor_no_new\" class=\"only-in-en-us\">TypeError: class constructors must be invoked with 'new'</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value\">TypeError: cyclic object value</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Invalid_derived_return\" class=\"only-in-en-us\">TypeError: derived class constructor returned invalid value x</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Private_setter_only\" class=\"only-in-en-us\">TypeError: getting private setter-only property</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Private_double_initialization\" class=\"only-in-en-us\">TypeError: Initializing an object twice is an error with private fields/methods</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand\">TypeError: invalid 'instanceof' operand 'x'</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Array_sort_argument\">TypeError: invalid Array.prototype.sort argument</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Invalid_const_assignment\">TypeError: invalid assignment to const \"x\"</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Constructor_cant_be_used_directly\" class=\"only-in-en-us\">TypeError: Iterator/AsyncIterator constructor can't be used directly</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Requires_global_RegExp\" class=\"only-in-en-us\">TypeError: matchAll/replaceAll must be called with a global RegExp</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/More_arguments_needed\">TypeError: More arguments needed</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/No_properties\">TypeError: \"x\" has no properties</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Cant_delete\">TypeError: property \"x\" is non-configurable and can't be deleted</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value\">TypeError: Reduce of empty array with no initial value</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Getter_only\">TypeError: setting a property that has only a getter</a></li><li><a href=\"/en-US/docs/Web/JavaScript/Reference/Errors/Key_not_weakly_held\" class=\"only-in-en-us\">TypeError: WeakSet key/WeakMap value 'x' must be an object or an unregistered symbol</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Called_on_incompatible_type\">TypeError: X.prototype.y called on incompatible type</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Malformed_URI\">URIError: malformed URI sequence</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Already_has_pragma\">Warning: -file- is being assigned a //# sourceMappingURL, but already has one</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Errors/Stmt_after_return\">Warning: unreachable code after return statement</a></li></ol></details></li><li class=\"toggle\"><details><summary>Divers</summary><ol><li><a href=\"/fr/docs/Web/JavaScript/JavaScript_technologies_overview\">Aperçu des technologies JavaScript</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Lexical_grammar\">Grammaire lexicale</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Iteration_protocols\">Protocoles d'itération</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Strict_mode\">Mode strict</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Template_literals\">Gabarits de chaînes de caractères</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Trailing_commas\">Virgules finales</a></li><li><a href=\"/fr/docs/Web/JavaScript/Reference/Deprecated_and_obsolete_features\">Fonctionnalités dépréciées</a></li></ol></details></li></ol>","source":{"folder":"fr/web/javascript/reference/operators/spread_syntax","github_url":"https://github.com/mdn/translated-content/blob/main/files/fr/web/javascript/reference/operators/spread_syntax/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/1625fd4c195d9202b73d9d611ce0b4cdc72add32","filename":"index.md"},"summary":"La syntaxe de décomposition permet d'étendre un itérable (par exemple une expression de tableau ou une chaîne de caractères) en lieu et place de plusieurs arguments (pour les appels de fonctions) ou de plusieurs éléments (pour les littéraux de tableaux) ou de paires clés-valeurs (pour les littéraux d'objets).","title":"Syntaxe de décomposition","toc":[{"text":"Exemple interactif","id":"exemple_interactif"},{"text":"Syntaxe","id":"syntaxe"},{"text":"Exemples","id":"exemples"},{"text":"Les paramètres du reste","id":"les_paramètres_du_reste"},{"text":"Spécifications","id":"spécifications"},{"text":"Compatibilité des navigateurs","id":"compatibilité_des_navigateurs"},{"text":"Voir aussi","id":"voir_aussi"}],"baseline":{"baseline":"high","baseline_low_date":"2020-01-15","baseline_high_date":"2022-07-15","support":{"chrome":"60","chrome_android":"60","edge":"79","firefox":"55","firefox_android":"55","safari":"11.1","safari_ios":"11.3"}},"browserCompat":["javascript.operators.spread"],"pageType":"javascript-operator"}}</script></body></html>