This is a new technology, part of the ECMAScript 2015 (ES6) standard .
This technology's specification has been finalized, but check the compatibility table for usage and implementation status in various browsers.

The entries() method returns a new Array Iterator object that contains the key/value pairs for each index in the array.




var arr = ['a', 'b', 'c'];
var eArr = arr.entries();

console.log(; // [0, 'a']
console.log(; // [1, 'b']
console.log(; // [2, 'c']


Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Array.prototype.entries' in that specification.
Standard Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 38 28 (28) Not supported 25 7.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported 28.0 (28) Not supported Not supported 8.0

See also

Document Tags and Contributors

 Contributors to this page: fscholz, arai, fasttime, Mingun, realityking, vladikoff
 Last updated by: fscholz,
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