The initial value of the @@iterator
property is the same function object as the initial value of the values
property.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
Syntax
mySet[Symbol.iterator]
Return value
The Set
iterator function, which is the values()
function by default.
Examples
Using [@@iterator]()
var mySet = new Set(); mySet.add('0'); mySet.add(1); mySet.add({}); var setIter = mySet[Symbol.iterator](); console.log(setIter.next().value); // "0" console.log(setIter.next().value); // 1 console.log(setIter.next().value); // Object
Using [@@iterator]()
with for..of
var mySet = new Set(); mySet.add('0'); mySet.add(1); mySet.add({}); for (var v of mySet) { console.log(v); }
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Set.prototype[@@iterator]' in that specification. |
Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'Set.prototype[@@iterator]' in that specification. |
Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes | Yes | 36 | No | Yes | Yes |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | 36 | Yes | Yes | Yes |
1. A placeholder property named @@iterator
is used.
2. Supported as @@iterator
.
3. A placeholder property named iterator
is used.
4. Supported as iterator
.