The entries()
method returns a new Iterator object that contains the [key, value]
pairs for each element in the Map
object in insertion order.
myMap.entries()
A new Map
iterator object.
entries()
var myMap = new Map(); myMap.set('0', 'foo'); myMap.set(1, 'bar'); myMap.set({}, 'baz'); var mapIter = myMap.entries(); console.log(mapIter.next().value); // ["0", "foo"] console.log(mapIter.next().value); // [1, "bar"] console.log(mapIter.next().value); // [Object, "baz"]
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Map.prototype.entries' in that specification. | Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'Map.prototype.entries' in that specification. | Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 38 | 12 | 20 | No | 25 | 8 |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 38 | 38 | 12 | 20 | 25 | 8 | Yes |
Server | |
---|---|
Node.js | |
Basic support | 0.12 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/entries