The entries()
method returns a new Array Iterator
object that contains the key/value pairs for each index in the array.
Syntax
arr.entries()
Return value
A new Array Iterator
object.
Examples
Iteration using for...of
loop
var arr = new Uint8Array([10, 20, 30, 40, 50]); var eArray = arr.entries(); // your browser must support for..of loop // and let-scoped variables in for loops for (let n of eArray) { console.log(n); }
Alternative iteration
var arr = new Uint8Array([10, 20, 30, 40, 50]); var eArr = arr.entries(); console.log(eArr.next().value); // [0, 10] console.log(eArr.next().value); // [1, 20] console.log(eArr.next().value); // [2, 30] console.log(eArr.next().value); // [3, 40] console.log(eArr.next().value); // [4, 50]
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of '%TypedArray%.prototype.entries()' in that specification. |
Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of '%TypedArray%.prototype.entries()' 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 | 45 | ? | 37 | No | 36 | No |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | No | Yes | ? | 37 | No | No | No |