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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 Iterable class from the dart:core library, for the Dart programming language."> <title>Iterable class - dart:core library - Dart API</title> <link rel="canonical" href="https://api.dart.dev/dart-core/Iterable-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</a></li> <li class="self-crumb">Iterable<E> class</li> </ol> <div class="self-name">Iterable</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/Iterable-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/a8bfb132c5f7b9555d13ea79eaf0eaa77825824d/sdk/lib/core/iterable.dart#L92">description</a></div> <h1>Iterable<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/mixins" class="feature feature-mixin" title="This class can be used as a class and a mixin.">mixin</a> </h1></div> <section class="desc markdown"> A collection of values, or "elements", that can be accessed sequentially. The elements of the iterable are accessed by getting an <a href="../dart-core/Iterator-class.html">Iterator</a> using the <a href="../dart-core/Iterable/iterator.html">iterator</a> getter, and using it to step through the values. Stepping with the iterator is done by calling <a href="../dart-core/Iterator/moveNext.html">Iterator.moveNext</a>, and if the call returns <code>true</code>, the iterator has now moved to the next element, which is then available as <a href="../dart-core/Iterator/current.html">Iterator.current</a>. If the call returns <code>false</code>, there are no more elements. The <a href="../dart-core/Iterator/current.html">Iterator.current</a> value must only be used when the most recent call to <a href="../dart-core/Iterator/moveNext.html">Iterator.moveNext</a> has returned <code>true</code>. If it is used before calling <a href="../dart-core/Iterator/moveNext.html">Iterator.moveNext</a> the first time on an iterator, or after a call has returned false or has thrown an error, reading <a href="../dart-core/Iterator/current.html">Iterator.current</a> may throw or may return an arbitrary value. You can create more than one iterator from the same <code>Iterable</code>. Each time <code>iterator</code> is read, it returns a new iterator, and different iterators can be stepped through independently, each giving access to all the elements of the iterable. The iterators of the same iterable should provide the same values in the same order (unless the underlying collection is modified between the iterations, which some collections allow). You can also iterate over the elements of an <code>Iterable</code> using the for-in loop construct, which uses the <code>iterator</code> getter behind the scenes. For example, you can iterate over all of the keys of a <a href="../dart-core/Map-class.html">Map</a>, because <code>Map</code> keys are iterable. <pre class="language-dart"><code class="language-dart">var kidsBooks = {'Matilda': 'Roald Dahl', 'Green Eggs and Ham': 'Dr Seuss', 'Where the Wild Things Are': 'Maurice Sendak'}; for (var book in kidsBooks.keys) { print('$book was written by ${kidsBooks[book]}'); } </code></pre> The <a href="../dart-core/List-class.html">List</a> and <a href="../dart-core/Set-class.html">Set</a> classes are both <code>Iterable</code>, as are most classes in the <code>dart:collection</code> library. Some <a href="../dart-core/Iterable-class.html">Iterable</a> collections can be modified. Adding an element to a <code>List</code> or <code>Set</code> will change which elements it contains, and adding a new key to a <code>Map</code> changes the elements of <a href="../dart-core/Map/keys.html">Map.keys</a>. Iterators created after the change will provide the new elements, and may or may not preserve the order of existing elements (for example, a <a href="../dart-collection/HashSet-class.html">HashSet</a> may completely change its order when a single element is added). Changing a collection while it is being iterated is generally not allowed. Doing so will break the iteration, which is typically signalled by throwing a <a href="../dart-core/ConcurrentModificationError-class.html">ConcurrentModificationError</a> the next time <a href="../dart-core/Iterator/moveNext.html">Iterator.moveNext</a> is called. The current value of <a href="../dart-core/Iterator/current.html">Iterator.current</a> getter should not be affected by the change in the collection, the <code>current</code> value was set by the previous call to <a href="../dart-core/Iterator/moveNext.html">Iterator.moveNext</a>. Some iterables compute their elements dynamically every time they are iterated, like the one returned by <a href="../dart-core/Iterable/Iterable.generate.html">Iterable.generate</a> or the iterable returned by a <code>sync*</code> generator function. If the computation doesn't depend on other objects that may change, then the generated sequence should be the same one every time it's iterated. The members of <code>Iterable</code>, other than <code>iterator</code> itself, work by looking at the elements of the iterable. This can be implemented by running through the <a href="../dart-core/Iterable/iterator.html">iterator</a>, but some classes may have more efficient ways of finding the result (like <a href="../dart-core/Iterable/last.html">last</a> or <a href="../dart-core/Iterable/length.html">length</a> on a <a href="../dart-core/List-class.html">List</a>, or <a href="../dart-core/Iterable/contains.html">contains</a> on a <a href="../dart-core/Set-class.html">Set</a>). The methods that return another <code>Iterable</code> (like <a href="../dart-core/Iterable/map.html">map</a> and <a href="../dart-core/Iterable/where.html">where</a>) are all lazy - they will iterate the original (as necessary) every time the returned iterable is iterated, and not before. Since an iterable may be iterated more than once, it's not recommended to have detectable side-effects in the iterator. For methods like <a href="../dart-core/Iterable/map.html">map</a> and <a href="../dart-core/Iterable/where.html">where</a>, the returned iterable will execute the argument function on every iteration, so those functions should also not have side effects. The <code>Iterable</code> declaration provides a default implementation, which can be extended or mixed in to implement the <code>Iterable</code> interface. It implements every member other than the <a href="../dart-core/Iterable/iterator.html">iterator</a> getter, using the <a href="../dart-core/Iterator-class.html">Iterator</a> provided by <a href="../dart-core/Iterable/iterator.html">iterator</a>. An implementation of the <code>Iterable</code> interface should provide a more efficient implementation of the members of <code>Iterable</code> when it can do so. </section> <section> <dl class="dl-horizontal"> <dt>Implementers</dt> <dd><ul class="comma-separated clazz-relationships"> <li><a href="../dart-collection/DoubleLinkedQueue-class.html">DoubleLinkedQueue</a></li> <li><a href="../dart-collection/LinkedList-class.html">LinkedList</a></li> <li><a href="../dart-core/List-class.html">List</a></li> <li><a href="../dart-collection/ListQueue-class.html">ListQueue</a></li> <li><a href="../dart-collection/Queue-class.html">Queue</a></li> <li><a href="../dart-core/Runes-class.html">Runes</a></li> <li><a href="../dart-core/Set-class.html">Set</a></li> <li><a href="../dart-collection/SplayTreeSet-class.html">SplayTreeSet</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-async/FutureIterable.html">FutureIterable</a></li> <li><a href="../dart-collection/IterableExtensions.html">IterableExtensions</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="Iterable" class="callable"> <a href="../dart-core/Iterable/Iterable.html">Iterable</a>() </dt> <dd> <div class="constructor-modifier features">const</div> </dd> <dt id="Iterable.empty" class="callable"> <a href="../dart-core/Iterable/Iterable.empty.html">Iterable.empty</a>() </dt> <dd> Creates an empty iterable. <div class="constructor-modifier features">const</div> <div class="constructor-modifier features">factory</div> </dd> <dt id="Iterable.generate" class="callable"> <a href="../dart-core/Iterable/Iterable.generate.html">Iterable.generate</a>(<a href="../dart-core/int-class.html">int</a> count, [E generator(<a href="../dart-core/int-class.html">int</a> index)?]) </dt> <dd> Creates an <code>Iterable</code> which generates its elements dynamically. <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/Iterable/first.html">first</a> → E </dt> <dd> The first element. <div class="features">no setter</div> </dd> <dt id="firstOrNull" class="property"> <a href="../dart-collection/IterableExtensions/firstOrNull.html">firstOrNull</a> → T? </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-collection/IterableExtensions.html">IterableExtensions</a> extension The first element of this iterator, or <code>null</code> if the iterable is empty. <div class="features">no setter</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="indexed" class="property"> <a href="../dart-collection/IterableExtensions/indexed.html">indexed</a> → <a href="../dart-core/Iterable-class.html">Iterable</a><(<a href="../dart-core/int-class.html">int</a>, T)> </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-collection/IterableExtensions.html">IterableExtensions</a> extension Pairs of elements of the indices and elements of this iterable. <div class="features">no setter</div> </dd> <dt id="isEmpty" class="property"> <a href="../dart-core/Iterable/isEmpty.html">isEmpty</a> → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd> Whether this collection has no elements. <div class="features">no setter</div> </dd> <dt id="isNotEmpty" class="property"> <a href="../dart-core/Iterable/isNotEmpty.html">isNotEmpty</a> → <a href="../dart-core/bool-class.html">bool</a> </dt> <dd> Whether this collection has at least one element. <div class="features">no setter</div> </dd> <dt id="iterator" class="property"> <a href="../dart-core/Iterable/iterator.html">iterator</a> → <a href="../dart-core/Iterator-class.html">Iterator</a><E> </dt> <dd> A new <code>Iterator</code> that allows iterating the elements of this <code>Iterable</code>. <div class="features">no setter</div> </dd> <dt id="last" class="property"> <a href="../dart-core/Iterable/last.html">last</a> → E </dt> <dd> The last element. <div class="features">no setter</div> </dd> <dt id="lastOrNull" class="property"> <a href="../dart-collection/IterableExtensions/lastOrNull.html">lastOrNull</a> → T? </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-collection/IterableExtensions.html">IterableExtensions</a> extension The last element of this iterable, or <code>null</code> if the iterable is empty. <div class="features">no setter</div> </dd> <dt id="length" class="property"> <a href="../dart-core/Iterable/length.html">length</a> → <a href="../dart-core/int-class.html">int</a> </dt> <dd> The number of elements in this <a href="../dart-core/Iterable-class.html">Iterable</a>. <div class="features">no setter</div> </dd> <dt id="nonNulls" class="property"> <a href="../dart-collection/NullableIterableExtensions/nonNulls.html">nonNulls</a> → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T?>, provided by the <a href="../dart-collection/NullableIterableExtensions.html">NullableIterableExtensions</a> extension The non-<code>null</code> elements of this iterable. <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"> <a href="../dart-core/Iterable/single.html">single</a> → E </dt> <dd> Checks that this iterable has only one element, and returns that element. <div class="features">no setter</div> </dd> <dt id="singleOrNull" class="property"> <a href="../dart-collection/IterableExtensions/singleOrNull.html">singleOrNull</a> → T? </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-collection/IterableExtensions.html">IterableExtensions</a> extension The single element of this iterator, or <code>null</code>. <div class="features">no setter</div> </dd> <dt id="wait" class="property"> <a href="../dart-async/FutureIterable/wait.html">wait</a> → <a href="../dart-async/Future-class.html">Future</a><<a href="../dart-core/List-class.html">List</a><T>> </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><<a href="../dart-async/Future-class.html">Future</a><T>>, provided by the <a href="../dart-async/FutureIterable.html">FutureIterable</a> extension Waits for futures in parallel. <div class="features">no setter</div> </dd> </dl> </section> <section class="summary offset-anchor" id="instance-methods"> <h2>Methods</h2> <dl class="callables"> <dt id="any" class="callable"> <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> Checks whether any element of this iterable satisfies <code>test</code>. </dd> <dt id="asNameMap" class="callable"> <a href="../dart-core/EnumByName/asNameMap.html">asNameMap</a>() → <a href="../dart-core/Map-class.html">Map</a><<a href="../dart-core/String-class.html">String</a>, T> </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-core/EnumByName.html">EnumByName</a> extension Creates a map from the names of enum values to the values. </dd> <dt id="byName" class="callable"> <a href="../dart-core/EnumByName/byName.html">byName</a>(<a href="../dart-core/String-class.html">String</a> name) → T </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-core/EnumByName.html">EnumByName</a> extension Finds the enum value in this list with name <code>name</code>. </dd> <dt id="cast" class="callable"> <a href="../dart-core/Iterable/cast.html">cast</a><R>() → <a href="../dart-core/Iterable-class.html">Iterable</a><R> </dt> <dd> A view of this iterable as an iterable of <code>R</code> instances. </dd> <dt id="contains" class="callable"> <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> Whether the collection contains an element equal to <code>element</code>. </dd> <dt id="elementAt" class="callable"> <a href="../dart-core/Iterable/elementAt.html">elementAt</a>(<a href="../dart-core/int-class.html">int</a> index) → E </dt> <dd> Returns the <code>index</code>th element. </dd> <dt id="elementAtOrNull" class="callable"> <a href="../dart-collection/IterableExtensions/elementAtOrNull.html">elementAtOrNull</a>(<a href="../dart-core/int-class.html">int</a> index) → T? </dt> <dd> Available on <a href="../dart-core/Iterable-class.html">Iterable</a><T>, provided by the <a href="../dart-collection/IterableExtensions.html">IterableExtensions</a> extension The element at position <code>index</code> of this iterable, or <code>null</code>. </dd> <dt id="every" class="callable"> <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> Checks whether every element of this iterable satisfies <code>test</code>. </dd> <dt id="expand" class="callable"> <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> Expands each element of this <a href="../dart-core/Iterable-class.html">Iterable</a> into zero or more elements. </dd> <dt id="firstWhere" class="callable"> <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> The first element that satisfies the given predicate <code>test</code>. </dd> <dt id="fold" class="callable"> <a href="../dart-core/Iterable/fold.html">fold</a><T>(T initialValue, T combine(T previousValue, E element)) → T </dt> <dd> Reduces a collection to a single value by iteratively combining each element of the collection with an existing value </dd> <dt id="followedBy" class="callable"> <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> Creates the lazy concatenation of this iterable and <code>other</code>. </dd> <dt id="forEach" class="callable"> <a href="../dart-core/Iterable/forEach.html">forEach</a>(void action(E element)) → void </dt> <dd> Invokes <code>action</code> on each element of this iterable in iteration order. </dd> <dt id="join" class="callable"> <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> Converts each element to a <a href="../dart-core/String-class.html">String</a> and concatenates the strings. </dd> <dt id="lastWhere" class="callable"> <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> The last element that satisfies the given predicate <code>test</code>. </dd> <dt id="map" class="callable"> <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> The current elements of this iterable modified by <code>toElement</code>. </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"> <a href="../dart-core/Iterable/reduce.html">reduce</a>(E combine(E value, E element)) → E </dt> <dd> Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. </dd> <dt id="singleWhere" class="callable"> <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> The single element that satisfies <code>test</code>. </dd> <dt id="skip" class="callable"> <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> Creates an <a href="../dart-core/Iterable-class.html">Iterable</a> that provides all but the first <code>count</code> elements. </dd> <dt id="skipWhile" class="callable"> <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> Creates an <code>Iterable</code> that skips leading elements while <code>test</code> is satisfied. </dd> <dt id="take" class="callable"> <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> Creates a lazy iterable of the <code>count</code> first elements of this iterable. </dd> <dt id="takeWhile" class="callable"> <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> Creates a lazy iterable of the leading elements satisfying <code>test</code>. </dd> <dt id="toList" class="callable"> <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> 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>. </dd> <dt id="toSet" class="callable"> <a href="../dart-core/Iterable/toSet.html">toSet</a>() → <a href="../dart-core/Set-class.html">Set</a><E> </dt> <dd> Creates a <a href="../dart-core/Set-class.html">Set</a> containing the same elements as this iterable. </dd> <dt id="toString" class="callable"> <a href="../dart-core/Iterable/toString.html">toString</a>() → <a href="../dart-core/String-class.html">String</a> </dt> <dd> Returns a string representation of (some of) the elements of <code>this</code>. <div class="features">override</div> </dd> <dt id="where" class="callable"> <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> Creates a new lazy <a href="../dart-core/Iterable-class.html">Iterable</a> with all elements that satisfy the predicate <code>test</code>. </dd> <dt id="whereType" class="callable"> <a href="../dart-core/Iterable/whereType.html">whereType</a><T>() → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd> Creates a new lazy <a href="../dart-core/Iterable-class.html">Iterable</a> with all elements that have type <code>T</code>. </dd> </dl> </section> <section class="summary offset-anchor inherited" id="operators"> <h2>Operators</h2> <dl class="callables"> <dt id="operator ==" class="callable inherited"> <a href="../dart-core/Object/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 class="inherited"> The equality operator. <div class="features">inherited</div> </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/Iterable/castFrom.html">castFrom</a><S, T>(<a href="../dart-core/Iterable-class.html">Iterable</a><S> source) → <a href="../dart-core/Iterable-class.html">Iterable</a><T> </dt> <dd> Adapts <code>source</code> to be an <code>Iterable<T></code>. </dd> <dt id="iterableToFullString" class="callable"> <a href="../dart-core/Iterable/iterableToFullString.html">iterableToFullString</a>(<a href="../dart-core/Iterable-class.html">Iterable</a> iterable, [<a href="../dart-core/String-class.html">String</a> leftDelimiter = '(', <a href="../dart-core/String-class.html">String</a> rightDelimiter = ')']) → <a href="../dart-core/String-class.html">String</a> </dt> <dd> Converts an <code>Iterable</code> to a string. </dd> <dt id="iterableToShortString" class="callable"> <a href="../dart-core/Iterable/iterableToShortString.html">iterableToShortString</a>(<a href="../dart-core/Iterable-class.html">Iterable</a> iterable, [<a href="../dart-core/String-class.html">String</a> leftDelimiter = '(', <a href="../dart-core/String-class.html">String</a> rightDelimiter = ')']) → <a href="../dart-core/String-class.html">String</a> </dt> <dd> Convert an <code>Iterable</code> to a string like <a href="../dart-core/Iterable/toString.html">Iterable.toString</a>. </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</a></li> <li class="self-crumb">Iterable<E> class</li> </ol> <h5>dart:core library</h5> <div id="dartdoc-sidebar-left-content"></div> </div> <div id="dartdoc-sidebar-right" class="sidebar sidebar-offcanvas-right"> </div> </main> <footer> 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