The initial value of the @@iterator property is the same function object as the initial value of the values
property.
Syntax
arr[Symbol.iterator]()
Return value
The array iterator function, which is the values()
function by default.
Examples
Iteration using for...of
loop
var arr = new Uint8Array([10, 20, 30, 40, 50]); // your browser must support for..of loop // and let-scoped variables in for loops for (let n of arr) { console.log(n); }
Alternative iteration
var arr = new Uint8Array([10, 20, 30, 40, 50]); var eArr = arr[Symbol.iterator](); console.log(eArr.next().value); // 10 console.log(eArr.next().value); // 20 console.log(eArr.next().value); // 30 console.log(eArr.next().value); // 40 console.log(eArr.next().value); // 50
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of '%TypedArray%.prototype[@@iterator]()' in that specification. |
Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of '%TypedArray%.prototype[@@iterator]()' in that specification. |
Living Standard |
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 | ? | 17 — 271 364 | Yes | Yes | Yes |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | ? | 36 | Yes | Yes | Yes |
1. Supported as iterator
.
2. A placeholder property named @@iterator
is used.
3. Supported as @@iterator
.
4. The @@iterator
symbol is implemented.