The entries()
method returns a new Iterator object that contains the [key, value]
pairs for each element in the Map
object in insertion order.
Syntax
myMap.entries()
Return value
A new Map
iterator object.
Examples
Using 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"]
Specifications
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. |
Living Standard |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 38 | (Yes) | 20 (20) | No support | 25 | 7.1 |
Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | No support | 38 | (Yes) | 20.0 (20) | No support | No support | 8 |
See also
Document Tags and Contributors
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Contributors to this page:
jameshkramer,
nmve,
kdex,
martijndeh,
eduardoboucas,
fscholz,
arai,
realityking
Last updated by:
jameshkramer,