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The Object.entries() method returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by a loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).




The object whose enumerable own property [key, value] pairs are to be returned.

Return value

An array of the given object's own enumerable property [key, value] pairs.


Object.entries() returns an array whose elements are arrays corresponding to the enumerable property [key, value] pairs found directly upon object. The ordering of the properties is the same as that given by looping over the property values of the object manually.


var obj = { foo: 'bar', baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]

// array like object
var obj = { 0: 'a', 1: 'b', 2: 'c' };
console.log(Object.entries(obj)); // [ ['0', 'a'], ['1', 'b'], ['2', 'c'] ]

// array like object with random key ordering
var an_obj = { 100: 'a', 2: 'b', 7: 'c' };
console.log(Object.entries(an_obj)); // [ ['2', 'b'], ['7', 'c'], ['100', 'a'] ]

// getFoo is property which isn't enumerable
var my_obj = Object.create({}, { getFoo: { value: function() { return; } } }); = 'bar';
console.log(Object.entries(my_obj)); // [ ['foo', 'bar'] ]

// non-object argument will be coerced to an object
console.log(Object.entries('foo')); // [ ['0', 'f'], ['1', 'o'], ['2', 'o'] ]

// iterate through key-value gracefully
var obj = {a: 5, b: 7, c: 9};
for (var [key, value] of Object.entries(obj)) {
    console.log(key + ' ' + value); // "a 5", "b 7", "c 9"

// Or, using array extras
Object.entries(obj).forEach(([key, value]) => {
    console.log(key + ' ' + value); // "a 5", "b 7", "c 9"     

Converting an Object to a Map

The new Map() constructor accepts an iterable of entries. With Object.entries, you can easily convert from Object to Map:

var obj = { foo: 'bar', baz: 42 }; 
var map = new Map(Object.entries(obj));
console.log(map); // Map { foo: "bar", baz: 42 }


To add compatible Object.entries support in older environments that do not natively support it, you can find a Polyfill in the tc39/proposal-object-values-entries or in the es-shims/Object.entries repositories.


Specification Status Comment
ECMAScript Latest Draft (ECMA-262)
The definition of 'Object.entries' in that specification.
Draft Initial definition.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 54 (Yes) 47 (47) No support No support 10.1
Feature Android Webview Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 54 54 (Yes) 47.0 (47) No support No support No support

See also

Document Tags and Contributors

 Last updated by: jameshkramer,