The values()
method returns a new Array Iterator
object that contains the values for each index in the array.
var a = ['w', 'y', 'k', 'o', 'p']; var iterator = a.values(); console.log(iterator.next().value); // w console.log(iterator.next().value); // y console.log(iterator.next().value); // k console.log(iterator.next().value); // o console.log(iterator.next().value); // p
arr.values()
A new Array
iterator object.
for...of
loopvar arr = ['w', 'y', 'k', 'o', 'p']; var iterator = arr.values(); for (let letter of iterator) { console.log(letter); }
Array.prototype.values is default implementation of Array.prototype[Symbol.iterator].
Array.prototype.values === Array.prototype[Symbol.iterator] //true
TODO please write about why we need it, usecases.
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Array.prototype.values' in that specification. | Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'Array.prototype.values' in that specification. | Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 66 | Yes | 60 | No | 53 | 9 |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 66 | 66 | Yes | 60 | 53 | 9 | No |
Server | |
---|---|
Node.js | |
Basic support | 10.9.0
|
Array.prototype.keys()
Array.prototype.entries()
Array.prototype.forEach()
Array.prototype.every()
Array.prototype.some()
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/values