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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1, user-scalable=no"> <meta name="description" content="API docs for the List class from the dart:core library, for the Dart programming language."> <title>List class - dart:core library - Dart API</title> <link rel="canonical" href="https://api.dart.dev/dart-core/List-class.html"> <link rel="preconnect" href="https://fonts.gstatic.com"> <link href="https://fonts.googleapis.com/css2?family=Roboto+Mono:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap" rel="stylesheet"> <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0" rel="stylesheet"> <link rel="stylesheet" href="../static-assets/github.css?v1"> <link rel="stylesheet" href="../static-assets/styles.css?v1"> <link rel="icon" href="../static-assets/favicon.png?v1">  <script async src="https://www.googletagmanager.com/gtag/js?id=G-VVQ8908SJ5"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-VVQ8908SJ5'); </script> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link rel="preload" href="https://fonts.googleapis.com/css2?family=Google+Sans+Text:wght@400&family=Google+Sans:wght@500&display=swap" as="style"> <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Google+Sans+Text:wght@400&family=Google+Sans:wght@500&display=swap"> <link rel="stylesheet" href="https://www.gstatic.com/glue/cookienotificationbar/cookienotificationbar.min.css"> </head> <body data-base-href="../" data-using-base-href="false" class="light-theme"> <div id="overlay-under-drawer"></div> <header id="title"> menu <ol class="breadcrumbs gt-separated dark hidden-xs"> <li><a href="../index.html">Dart</a></li> <li><a href="../dart-core/dart-core-library.html">dart:core</a></li> <li class="self-crumb">List<E> class</li> </ol> <div class="self-name">List</div> <form class="search navbar-right" role="search"> <input type="text" id="search-box" autocomplete="off" disabled class="form-control typeahead" placeholder="Loading search..."> </form> <div class="toggle" id="theme-button" title="Toggle brightness"> <label for="theme"> <input type="checkbox" id="theme" value="light-theme"> dark_mode light_mode </label> </div> </header> <main> <div id="dartdoc-main-content" class="main-content" data-above-sidebar="dart-core/dart-core-library-sidebar.html" data-below-sidebar="dart-core/List-class-sidebar.html"> <div> <div id="external-links" class="btn-group"><a title="View source code" class="source-link" href="https://github.com/dart-lang/sdk/blob/88c9758ef131d430d8ce595c6bfb4c90574d3ddd/sdk/lib/core/list.dart#L120">description</a></div> <h1>List<E> class <a href="https://dart.dev/language/class-modifiers#abstract" class="feature feature-abstract" title="This type can not be directly constructed.">abstract</a> <a href="https://dart.dev/language/class-modifiers#interface" class="feature feature-interface" title="This class can only be implemented (not extended or mixed in).">interface</a> </h1></div> <section class="desc markdown"> An indexable collection of objects with a length. Subclasses of this class implement different kinds of lists. The most common kinds of lists are: <ul> <li> Fixed-length list An error occurs when attempting to use operations that can change the length of the list. </li> <li> Growable list Full implementation of the API defined in this class. </li> </ul> The default growable list, as created by <code>[]</code>, keeps an internal buffer, and grows that buffer when necessary. This guarantees that a sequence of <a href="../dart-core/List/add.html">add</a> operations will each execute in amortized constant time. Setting the length directly may take time proportional to the new length, and may change the internal capacity so that a following add operation will need to immediately increase the buffer capacity. Other list implementations may have different performance behavior. Example of fixed-length list: <pre class="language-dart"><code class="language-dart">final fixedLengthList = List<int>.filled(5, 0); // Creates fixed-length list. print(fixedLengthList); // [0, 0, 0, 0, 0] fixedLengthList[0] = 87; fixedLengthList.setAll(1, [1, 2, 3]); print(fixedLengthList); // [87, 1, 2, 3, 0] // Fixed length list length can't be changed or increased fixedLengthList.length = 0; // Throws fixedLengthList.add(499); // Throws </code></pre> Example of growable list: <pre class="language-dart"><code class="language-dart">final growableList = <String>['A', 'B']; // Creates growable list. </code></pre> To add data to the growable list, use <a href="../dart-core/List/operator_put.html">operator[]=</a>, <a href="../dart-core/List/add.html">add</a> or <a href="../dart-core/List/addAll.html">addAll</a>. <pre class="language-dart"><code>growableList[0] = 'G'; print(growableList); // [G, B] growableList.add('X'); growableList.addAll({'C', 'B'}); print(growableList); // [G, B, X, C, B] </code></pre> To check whether, and where, the element is in the list, use <a href="../dart-core/List/indexOf.html">indexOf</a> or <a href="../dart-core/List/lastIndexOf.html">lastIndexOf</a>. <pre class="language-dart"><code>final indexA = growableList.indexOf('A'); // -1 (not in the list) final firstIndexB = growableList.indexOf('B'); // 1 final lastIndexB = growableList.lastIndexOf('B'); // 4 </code></pre> To remove an element from the growable list, use <a href="../dart-core/List/remove.html">remove</a>, <a href="../dart-core/List/removeAt.html">removeAt</a>, <a href="../dart-core/List/removeLast.html">removeLast</a>, <a href="../dart-core/List/removeRange.html">removeRange</a> or <a href="../dart-core/List/removeWhere.html">removeWhere</a>. <pre class="language-dart"><code>growableList.remove('C'); growableList.removeLast(); print(growableList); // [G, B, X] </code></pre> To insert an element at position in the list, use <a href="../dart-core/List/insert.html">insert</a> or <a href="../dart-core/List/insertAll.html">insertAll</a>. <pre class="language-dart"><code>growableList.insert(1, 'New'); print(growableList); // [G, New, B, X] </code></pre> To replace a range of elements in the list, use <a href="../dart-core/List/fillRange.html">fillRange</a>, <a href="../dart-core/List/replaceRange.html">replaceRange</a> or <a href="../dart-core/List/setRange.html">setRange</a>. <pre class="language-dart"><code>growableList.replaceRange(0, 2, ['AB', 'A']); print(growableList); // [AB, A, B, X] growableList.fillRange(2, 4, 'F'); print(growableList); // [AB, A, F, F] </code></pre> To sort the elements of the list, use <a href="../dart-core/List/sort.html">sort</a>. <pre class="language-dart"><code>growableList.sort((a, b) => a.compareTo(b)); print(growableList); // [A, AB, F, F] </code></pre> To shuffle the elements of this list randomly, use <a href="../dart-core/List/shuffle.html">shuffle</a>. <pre class="language-dart"><code>growableList.shuffle(); print(growableList); // e.g. [AB, F, A, F] </code></pre> To find the first element satisfying some predicate, or give a default value if none do, use <a href="../dart-core/Iterable/firstWhere.html">firstWhere</a>. <pre class="language-dart"><code>bool isVowel(String char) => char.length == 1 && "AEIOU".contains(char); final firstVowel = growableList.firstWhere(isVowel, orElse: () => ''); // '' </code></pre> There are similar <a href="../dart-core/Iterable/lastWhere.html">lastWhere</a> and <a href="../dart-core/Iterable/singleWhere.html">singleWhere</a> methods. A list is an <a href="../dart-core/Iterable-class.html">Iterable</a> and supports all its methods, including <a href="../dart-core/Iterable/where.html">where</a>, <a href="../dart-core/Iterable/map.html">map</a>, <a href="../dart-core/Iterable/whereType.html">whereType</a> and <a href="../dart-core/Iterable/toList.html">toList</a>. Lists are <a href="../dart-core/Iterable-class.html">Iterable</a>. Iteration occurs over values in index order. Changing the values does not affect iteration, but changing the valid indices鈥攖hat is, changing the list's length鈥攂etween iteration steps causes a <a href="../dart-core/ConcurrentModificationError-class.html">ConcurrentModificationError</a>. This means that only growable lists can throw ConcurrentModificationError. If the length changes temporarily and is restored before continuing the iteration, the iterator might not detect it. It is generally not allowed to modify the list's length (adding or removing elements) while an operation on the list is being performed, for example during a call to <a href="../dart-core/Iterable/forEach.html">forEach</a> or <a href="../dart-core/List/sort.html">sort</a>. Changing the list's length while it is being iterated, either by iterating it directly or through iterating an <a href="../dart-core/Iterable-class.html">Iterable</a> that is backed by the list, will break the iteration. </section> <section> <dl class="dl-horizontal"> <dt>Implemented types</dt> <dd> <ul class="comma-separated clazz-relationships"> <li><a href="../dart-core/Iterable-class.html">Iterable</a><E></li> <li><a href="../dart-core/Iterable-class.html">Iterable</a><T></li> <li><a href="../dart-core/Iterable-class.html">Iterable</a><T></li> </ul> </dd> <dt>Implementers</dt> <dd><ul class="comma-separated clazz-relationships"> <li><a href="../dart-html/DomRectList-class.html">DomRectList</a></li> <li><a href="../dart-html/DomStringList-class.html">DomStringList</a></li> <li><a href="../dart-html/FileList-class.html">FileList</a></li> <li><a href="../dart-html/HtmlCollection-class.html">HtmlCollection</a></li> <li><a href="../dart-html/ImmutableListMixin-class.html">ImmutableListMixin</a></li> <li><a href="../dart-svg/LengthList-class.html">LengthList</a></li> <li><a href="../dart-collection/ListBase-class.html">ListBase</a></li> <li><a href="../dart-html/MimeTypeArray-class.html">MimeTypeArray</a></li> <li><a href="../dart-html/NodeList-class.html">NodeList</a></li> <li><a href="../dart-svg/NumberList-class.html">NumberList</a></li> <li><a href="../dart-html/PluginArray-class.html">PluginArray</a></li> <li><a href="../dart-html/SourceBufferList-class.html">SourceBufferList</a></li> <li><a href="../dart-html/SpeechGrammarList-class.html">SpeechGrammarList</a></li> <li><a href="../dart-svg/StringList-class.html">StringList</a></li> <li><a href="../dart-html/TextTrackCueList-class.html">TextTrackCueList</a></li> <li><a href="../dart-html/TextTrackList-class.html">TextTrackList</a></li> <li><a href="../dart-html/TouchList-class.html">TouchList</a></li> <li><a href="../dart-svg/TransformList-class.html">TransformList</a></li> <li><a href="../dart-typed_data/TypedDataList-class.html">TypedDataList</a></li> <li><a href="../dart-collection/UnmodifiableListView-class.html">UnmodifiableListView</a></li> </ul></dd> <dt>Available Extensions</dt> <dd><ul class="comma-separated clazz-relationships"> <li><a href="../dart-core/EnumByName.html">EnumByName</a></li> <li><a href="../dart-collection/IterableExtensions.html">IterableExtensions</a></li> <li><a href="../dart-js_interop/ListToJSArray.html">ListToJSArray</a></li> <li><a href="../dart-collection/NullableIterableExtensions.html">NullableIterableExtensions</a></li> </ul></dd> </dl> </section> <section class="summary offset-anchor" id="constructors"> <h2>Constructors</h2> <dl class="constructor-summary-list"> <dt id="List.empty" class="callable"> <a href="../dart-core/List/List.empty.html">List.empty</a>({<a href="../dart-core/bool-class.html">bool</a> growable = false}) </dt> <dd> Creates a new empty list. <div class="constructor-modifier features">factory</div> </dd> <dt id="List.filled" class="callable"> <a href="../dart-core/List/List.filled.html">List.filled</a>(<a href="../dart-core/int-class.html">int</a> length, E fill, {<a href="../dart-core/bool-class.html">bool</a> growable = false}) </dt> <dd> Creates a list of the given length with <code>fill</code> at each position. <div class="constructor-modifier features">factory</div> </dd> <dt id="List.from" class="callable"> <a href="../dart-core/List/List.from.html">List.from</a>(<a href="../dart-core/Iterable-class.html">Iterable</a> elements, {<a href="../dart-core/bool-class.html">bool</a> growable = true}) </dt> <dd> Creates a list containing all <code>elements</code>. <div class="constructor-modifier features">factory</div> </dd> <dt id="List.generate" class="callable"> <a href="../dart-core/List/List.generate.html">List.generate</a>(<a href="../dart-core/int-class.html">int</a> length, E generator(<a href="../dart-core/int-class.html">int</a> index), {<a href="../dart-core/bool-class.html">bool</a> growable = true}) </dt> <dd> Generates a list of values. <div class="constructor-modifier features">factory</div> </dd> <dt id="List.of" class="callable"> <a href="../dart-core/List/List.of.html">List.of</a>(<a href="../dart-core/Iterable-class.html">Iterable</a><E> elements, {<a href="../dart-core/bool-class.html">bool</a> growable = true}) </dt> <dd> Creates a list from <code>elements</code>. <div class="constructor-modifier features">factory</div> </dd> <dt id="List.unmodifiable" class="callable"> <a href="../dart-core/List/List.unmodifiable.html">List.unmodifiable</a>(<a href="../dart-core/Iterable-class.html">Iterable</a> elements) </dt> <dd> Creates an unmodifiable list containing all <code>elements</code>. <div class="constructor-modifier features">factory</div> </dd> </dl> </section> <section class="summary offset-anchor" id="instance-properties"> <h2>Properties</h2> <dl class="properties"> <dt id="first" class="property"> <a href="../dart-core/List/first.html">first</a> ↔ E </dt> <dd> The first element. <div class="features">getter/setter pairinherited-getter</div> </dd> <dt id="hashCode" class="property inherited"> <a href="../dart-core/Object/hashCode.html">hashCode</a> → <a href="../dart-core/int-class.html">int</a> </dt> <dd class="inherited"> The hash code for this object. <div class="features">no setterinherited</div> </dd> <dt id="isEmpty" class="property inherited"> <a href="../dart-core/Iterable/isEmpty.html">isEmpty</a> → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd class="inherited"> Whether this collection has no elements. <div class="features">no setterinherited</div> </dd> <dt id="isNotEmpty" class="property inherited"> <a href="../dart-core/Iterable/isNotEmpty.html">isNotEmpty</a> → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd class="inherited"> Whether this collection has at least one element. <div class="features">no setterinherited</div> </dd> <dt id="iterator" class="property inherited"> <a href="../dart-core/Iterable/iterator.html">iterator</a> → <a href="../dart-core/Iterator-class.html">Iterator</a><E> </dt> <dd class="inherited"> A new <code>Iterator</code> that allows iterating the elements of this <code>Iterable</code>. <div class="features">no setterinherited</div> </dd> <dt id="last" class="property"> <a href="../dart-core/List/last.html">last</a> ↔ E </dt> <dd> The last element. <div class="features">getter/setter pairinherited-getter</div> </dd> <dt id="length" class="property"> <a href="../dart-core/List/length.html">length</a> ↔ <a href="../dart-core/int-class.html">int</a> </dt> <dd> The number of objects in this list. <div class="features">getter/setter pairoverride-getter</div> </dd> <dt id="reversed" class="property"> <a href="../dart-core/List/reversed.html">reversed</a> → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd> An <a href="../dart-core/Iterable-class.html">Iterable</a> of the objects in this list in reverse order. <div class="features">no setter</div> </dd> <dt id="runtimeType" class="property inherited"> <a href="../dart-core/Object/runtimeType.html">runtimeType</a> → <a href="../dart-core/Type-class.html">Type</a> </dt> <dd class="inherited"> A representation of the runtime type of the object. <div class="features">no setterinherited</div> </dd> <dt id="single" class="property inherited"> <a href="../dart-core/Iterable/single.html">single</a> → E </dt> <dd class="inherited"> Checks that this iterable has only one element, and returns that element. <div class="features">no setterinherited</div> </dd> </dl> </section> <section class="summary offset-anchor" id="instance-methods"> <h2>Methods</h2> <dl class="callables"> <dt id="add" class="callable"> <a href="../dart-core/List/add.html">add</a>(E value) → void </dt> <dd> Adds <code>value</code> to the end of this list, extending the length by one. </dd> <dt id="addAll" class="callable"> <a href="../dart-core/List/addAll.html">addAll</a>(<a href="../dart-core/Iterable-class.html">Iterable</a><E> iterable) → void </dt> <dd> Appends all objects of <code>iterable</code> to the end of this list. </dd> <dt id="any" class="callable inherited"> <a href="../dart-core/Iterable/any.html">any</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element)) → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd class="inherited"> Checks whether any element of this iterable satisfies <code>test</code>. <div class="features">inherited</div> </dd> <dt id="asMap" class="callable"> <a href="../dart-core/List/asMap.html">asMap</a>() → <a href="../dart-core/Map-class.html">Map</a><<a href="../dart-core/int-class.html">int</a>, E> </dt> <dd> An unmodifiable <a href="../dart-core/Map-class.html">Map</a> view of this list. </dd> <dt id="cast" class="callable"> <a href="../dart-core/List/cast.html">cast</a><R>() → <a href="../dart-core/List-class.html">List</a><R> </dt> <dd> Returns a view of this list as a list of <code>R</code> instances. <div class="features">override</div> </dd> <dt id="clear" class="callable"> <a href="../dart-core/List/clear.html">clear</a>() → void </dt> <dd> Removes all objects from this list; the length of the list becomes zero. </dd> <dt id="contains" class="callable inherited"> <a href="../dart-core/Iterable/contains.html">contains</a>(<a href="../dart-core/Object-class.html">Object</a>? element) → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd class="inherited"> Whether the collection contains an element equal to <code>element</code>. <div class="features">inherited</div> </dd> <dt id="elementAt" class="callable inherited"> <a href="../dart-core/Iterable/elementAt.html">elementAt</a>(<a href="../dart-core/int-class.html">int</a> index) → E </dt> <dd class="inherited"> Returns the <code>index</code>th element. <div class="features">inherited</div> </dd> <dt id="every" class="callable inherited"> <a href="../dart-core/Iterable/every.html">every</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element)) → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd class="inherited"> Checks whether every element of this iterable satisfies <code>test</code>. <div class="features">inherited</div> </dd> <dt id="expand" class="callable inherited"> <a href="../dart-core/Iterable/expand.html">expand</a><T>(<a href="../dart-core/Iterable-class.html">Iterable</a><T> toElements(E element)) → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd class="inherited"> Expands each element of this <a href="../dart-core/Iterable-class.html">Iterable</a> into zero or more elements. <div class="features">inherited</div> </dd> <dt id="fillRange" class="callable"> <a href="../dart-core/List/fillRange.html">fillRange</a>(<a href="../dart-core/int-class.html">int</a> start, <a href="../dart-core/int-class.html">int</a> end, [E? fillValue]) → void </dt> <dd> Overwrites a range of elements with <code>fillValue</code>. </dd> <dt id="firstWhere" class="callable inherited"> <a href="../dart-core/Iterable/firstWhere.html">firstWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element), {E orElse()?}) → E </dt> <dd class="inherited"> The first element that satisfies the given predicate <code>test</code>. <div class="features">inherited</div> </dd> <dt id="fold" class="callable inherited"> <a href="../dart-core/Iterable/fold.html">fold</a><T>(T initialValue, T combine(T previousValue, E element)) → T </dt> <dd class="inherited"> Reduces a collection to a single value by iteratively combining each element of the collection with an existing value <div class="features">inherited</div> </dd> <dt id="followedBy" class="callable inherited"> <a href="../dart-core/Iterable/followedBy.html">followedBy</a>(<a href="../dart-core/Iterable-class.html">Iterable</a><E> other) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates the lazy concatenation of this iterable and <code>other</code>. <div class="features">inherited</div> </dd> <dt id="forEach" class="callable inherited"> <a href="../dart-core/Iterable/forEach.html">forEach</a>(void action(E element)) → void </dt> <dd class="inherited"> Invokes <code>action</code> on each element of this iterable in iteration order. <div class="features">inherited</div> </dd> <dt id="getRange" class="callable"> <a href="../dart-core/List/getRange.html">getRange</a>(<a href="../dart-core/int-class.html">int</a> start, <a href="../dart-core/int-class.html">int</a> end) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd> Creates an <a href="../dart-core/Iterable-class.html">Iterable</a> that iterates over a range of elements. </dd> <dt id="indexOf" class="callable"> <a href="../dart-core/List/indexOf.html">indexOf</a>(E element, [<a href="../dart-core/int-class.html">int</a> start = 0]) → <a href="../dart-core/int-class.html">int</a> </dt> <dd> The first index of <code>element</code> in this list. </dd> <dt id="indexWhere" class="callable"> <a href="../dart-core/List/indexWhere.html">indexWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element), [<a href="../dart-core/int-class.html">int</a> start = 0]) → <a href="../dart-core/int-class.html">int</a> </dt> <dd> The first index in the list that satisfies the provided <code>test</code>. </dd> <dt id="insert" class="callable"> <a href="../dart-core/List/insert.html">insert</a>(<a href="../dart-core/int-class.html">int</a> index, E element) → void </dt> <dd> Inserts <code>element</code> at position <code>index</code> in this list. </dd> <dt id="insertAll" class="callable"> <a href="../dart-core/List/insertAll.html">insertAll</a>(<a href="../dart-core/int-class.html">int</a> index, <a href="../dart-core/Iterable-class.html">Iterable</a><E> iterable) → void </dt> <dd> Inserts all objects of <code>iterable</code> at position <code>index</code> in this list. </dd> <dt id="join" class="callable inherited"> <a href="../dart-core/Iterable/join.html">join</a>([<a href="../dart-core/String-class.html">String</a> separator = ""]) → <a href="../dart-core/String-class.html">String</a> </dt> <dd class="inherited"> Converts each element to a <a href="../dart-core/String-class.html">String</a> and concatenates the strings. <div class="features">inherited</div> </dd> <dt id="lastIndexOf" class="callable"> <a href="../dart-core/List/lastIndexOf.html">lastIndexOf</a>(E element, [<a href="../dart-core/int-class.html">int</a>? start]) → <a href="../dart-core/int-class.html">int</a> </dt> <dd> The last index of <code>element</code> in this list. </dd> <dt id="lastIndexWhere" class="callable"> <a href="../dart-core/List/lastIndexWhere.html">lastIndexWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element), [<a href="../dart-core/int-class.html">int</a>? start]) → <a href="../dart-core/int-class.html">int</a> </dt> <dd> The last index in the list that satisfies the provided <code>test</code>. </dd> <dt id="lastWhere" class="callable inherited"> <a href="../dart-core/Iterable/lastWhere.html">lastWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element), {E orElse()?}) → E </dt> <dd class="inherited"> The last element that satisfies the given predicate <code>test</code>. <div class="features">inherited</div> </dd> <dt id="map" class="callable inherited"> <a href="../dart-core/Iterable/map.html">map</a><T>(T toElement(E e)) → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd class="inherited"> The current elements of this iterable modified by <code>toElement</code>. <div class="features">inherited</div> </dd> <dt id="noSuchMethod" class="callable inherited"> <a href="../dart-core/Object/noSuchMethod.html">noSuchMethod</a>(<a href="../dart-core/Invocation-class.html">Invocation</a> invocation) → dynamic </dt> <dd class="inherited"> Invoked when a nonexistent method or property is accessed. <div class="features">inherited</div> </dd> <dt id="reduce" class="callable inherited"> <a href="../dart-core/Iterable/reduce.html">reduce</a>(E combine(E value, E element)) → E </dt> <dd class="inherited"> Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. <div class="features">inherited</div> </dd> <dt id="remove" class="callable"> <a href="../dart-core/List/remove.html">remove</a>(<a href="../dart-core/Object-class.html">Object</a>? value) → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd> Removes the first occurrence of <code>value</code> from this list. </dd> <dt id="removeAt" class="callable"> <a href="../dart-core/List/removeAt.html">removeAt</a>(<a href="../dart-core/int-class.html">int</a> index) → E </dt> <dd> Removes the object at position <code>index</code> from this list. </dd> <dt id="removeLast" class="callable"> <a href="../dart-core/List/removeLast.html">removeLast</a>() → E </dt> <dd> Removes and returns the last object in this list. </dd> <dt id="removeRange" class="callable"> <a href="../dart-core/List/removeRange.html">removeRange</a>(<a href="../dart-core/int-class.html">int</a> start, <a href="../dart-core/int-class.html">int</a> end) → void </dt> <dd> Removes a range of elements from the list. </dd> <dt id="removeWhere" class="callable"> <a href="../dart-core/List/removeWhere.html">removeWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element)) → void </dt> <dd> Removes all objects from this list that satisfy <code>test</code>. </dd> <dt id="replaceRange" class="callable"> <a href="../dart-core/List/replaceRange.html">replaceRange</a>(<a href="../dart-core/int-class.html">int</a> start, <a href="../dart-core/int-class.html">int</a> end, <a href="../dart-core/Iterable-class.html">Iterable</a><E> replacements) → void </dt> <dd> Replaces a range of elements with the elements of <code>replacements</code>. </dd> <dt id="retainWhere" class="callable"> <a href="../dart-core/List/retainWhere.html">retainWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element)) → void </dt> <dd> Removes all objects from this list that fail to satisfy <code>test</code>. </dd> <dt id="setAll" class="callable"> <a href="../dart-core/List/setAll.html">setAll</a>(<a href="../dart-core/int-class.html">int</a> index, <a href="../dart-core/Iterable-class.html">Iterable</a><E> iterable) → void </dt> <dd> Overwrites elements with the objects of <code>iterable</code>. </dd> <dt id="setRange" class="callable"> <a href="../dart-core/List/setRange.html">setRange</a>(<a href="../dart-core/int-class.html">int</a> start, <a href="../dart-core/int-class.html">int</a> end, <a href="../dart-core/Iterable-class.html">Iterable</a><E> iterable, [<a href="../dart-core/int-class.html">int</a> skipCount = 0]) → void </dt> <dd> Writes some elements of <code>iterable</code> into a range of this list. </dd> <dt id="shuffle" class="callable"> <a href="../dart-core/List/shuffle.html">shuffle</a>([<a href="../dart-math/Random-class.html">Random</a>? random]) → void </dt> <dd> Shuffles the elements of this list randomly. </dd> <dt id="singleWhere" class="callable inherited"> <a href="../dart-core/Iterable/singleWhere.html">singleWhere</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element), {E orElse()?}) → E </dt> <dd class="inherited"> The single element that satisfies <code>test</code>. <div class="features">inherited</div> </dd> <dt id="skip" class="callable inherited"> <a href="../dart-core/Iterable/skip.html">skip</a>(<a href="../dart-core/int-class.html">int</a> count) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates an <a href="../dart-core/Iterable-class.html">Iterable</a> that provides all but the first <code>count</code> elements. <div class="features">inherited</div> </dd> <dt id="skipWhile" class="callable inherited"> <a href="../dart-core/Iterable/skipWhile.html">skipWhile</a>(<a href="../dart-core/bool-class.html">bool</a> test(E value)) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates an <code>Iterable</code> that skips leading elements while <code>test</code> is satisfied. <div class="features">inherited</div> </dd> <dt id="sort" class="callable"> <a href="../dart-core/List/sort.html">sort</a>([<a href="../dart-core/int-class.html">int</a> compare(E a, E b)?]) → void </dt> <dd> Sorts this list according to the order specified by the <code>compare</code> function. </dd> <dt id="sublist" class="callable"> <a href="../dart-core/List/sublist.html">sublist</a>(<a href="../dart-core/int-class.html">int</a> start, [<a href="../dart-core/int-class.html">int</a>? end]) → <a href="../dart-core/List-class.html">List</a><E> </dt> <dd> Returns a new list containing the elements between <code>start</code> and <code>end</code>. </dd> <dt id="take" class="callable inherited"> <a href="../dart-core/Iterable/take.html">take</a>(<a href="../dart-core/int-class.html">int</a> count) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates a lazy iterable of the <code>count</code> first elements of this iterable. <div class="features">inherited</div> </dd> <dt id="takeWhile" class="callable inherited"> <a href="../dart-core/Iterable/takeWhile.html">takeWhile</a>(<a href="../dart-core/bool-class.html">bool</a> test(E value)) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates a lazy iterable of the leading elements satisfying <code>test</code>. <div class="features">inherited</div> </dd> <dt id="toList" class="callable inherited"> <a href="../dart-core/Iterable/toList.html">toList</a>({<a href="../dart-core/bool-class.html">bool</a> growable = true}) → <a href="../dart-core/List-class.html">List</a><E> </dt> <dd class="inherited"> Creates a <a href="../dart-core/List-class.html">List</a> containing the elements of this <a href="../dart-core/Iterable-class.html">Iterable</a>. <div class="features">inherited</div> </dd> <dt id="toSet" class="callable inherited"> <a href="../dart-core/Iterable/toSet.html">toSet</a>() → <a href="../dart-core/Set-class.html">Set</a><E> </dt> <dd class="inherited"> Creates a <a href="../dart-core/Set-class.html">Set</a> containing the same elements as this iterable. <div class="features">inherited</div> </dd> <dt id="toString" class="callable inherited"> <a href="../dart-core/Object/toString.html">toString</a>() → <a href="../dart-core/String-class.html">String</a> </dt> <dd class="inherited"> A string representation of this object. <div class="features">inherited</div> </dd> <dt id="where" class="callable inherited"> <a href="../dart-core/Iterable/where.html">where</a>(<a href="../dart-core/bool-class.html">bool</a> test(E element)) → <a href="../dart-core/Iterable-class.html">Iterable</a><E> </dt> <dd class="inherited"> Creates a new lazy <a href="../dart-core/Iterable-class.html">Iterable</a> with all elements that satisfy the predicate <code>test</code>. <div class="features">inherited</div> </dd> <dt id="whereType" class="callable inherited"> <a href="../dart-core/Iterable/whereType.html">whereType</a><T>() → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd class="inherited"> Creates a new lazy <a href="../dart-core/Iterable-class.html">Iterable</a> with all elements that have type <code>T</code>. <div class="features">inherited</div> </dd> </dl> </section> <section class="summary offset-anchor" id="operators"> <h2>Operators</h2> <dl class="callables"> <dt id="operator +" class="callable"> <a href="../dart-core/List/operator_plus.html">operator +</a>(<a href="../dart-core/List-class.html">List</a><E> other) → <a href="../dart-core/List-class.html">List</a><E> </dt> <dd> Returns the concatenation of this list and <code>other</code>. </dd> <dt id="operator ==" class="callable"> <a href="../dart-core/List/operator_equals.html">operator ==</a>(<a href="../dart-core/Object-class.html">Object</a> other) → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd> Whether this list is equal to <code>other</code>. <div class="features">override</div> </dd> <dt id="operator []" class="callable"> <a href="../dart-core/List/operator_get.html">operator []</a>(<a href="../dart-core/int-class.html">int</a> index) → E </dt> <dd> The object at the given <code>index</code> in the list. </dd> <dt id="operator []=" class="callable"> <a href="../dart-core/List/operator_put.html">operator []=</a>(<a href="../dart-core/int-class.html">int</a> index, E value) → void </dt> <dd> Sets the value at the given <code>index</code> in the list to <code>value</code>. </dd> </dl> </section> <section class="summary offset-anchor" id="static-methods"> <h2>Static Methods</h2> <dl class="callables"> <dt id="castFrom" class="callable"> <a href="../dart-core/List/castFrom.html">castFrom</a><S, T>(<a href="../dart-core/List-class.html">List</a><S> source) → <a href="../dart-core/List-class.html">List</a><T> </dt> <dd> Adapts <code>source</code> to be a <code>List<T></code>. <div class="features">override</div> </dd> <dt id="copyRange" class="callable"> <a href="../dart-core/List/copyRange.html">copyRange</a><T>(<a href="../dart-core/List-class.html">List</a><T> target, <a href="../dart-core/int-class.html">int</a> at, <a href="../dart-core/List-class.html">List</a><T> source, [<a href="../dart-core/int-class.html">int</a>? start, <a href="../dart-core/int-class.html">int</a>? end]) → void </dt> <dd> Copy a range of one list into another list. </dd> <dt id="writeIterable" class="callable"> <a href="../dart-core/List/writeIterable.html">writeIterable</a><T>(<a href="../dart-core/List-class.html">List</a><T> target, <a href="../dart-core/int-class.html">int</a> at, <a href="../dart-core/Iterable-class.html">Iterable</a><T> source) → void </dt> <dd> Write the elements of an iterable into a list. </dd> </dl> </section> </div>  <div id="dartdoc-sidebar-left" class="sidebar sidebar-offcanvas-left">  <header id="header-search-sidebar" class="hidden-l"> <form class="search-sidebar" role="search"> <input type="text" id="search-sidebar" autocomplete="off" disabled class="form-control typeahead" placeholder="Loading search..."> </form> </header> <ol class="breadcrumbs gt-separated dark hidden-l" id="sidebar-nav"> <li><a href="../index.html">Dart</a></li> <li><a href="../dart-core/dart-core-library.html">dart:core</a></li> <li class="self-crumb">List<E> class</li> </ol> <h5>dart:core library</h5> <div id="dartdoc-sidebar-left-content"></div> </div> <div id="dartdoc-sidebar-right" 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