Web/JavaScript/Reference/Global objects/Map/get

The get() method returns a specified element from a Map object. If the value that is associated to the provided key is an object, then you will get a reference to that object and any change made to that object will effectively modify it inside the Map object.

Syntax

myMap.get(key)

Parameters

key: The key of the element to return from the Map object.

Return value

The element associated with the specified key, or undefined if the key can't be found in the Map object.

Examples

Using get()

let myMap = new Map();
myMap.set('bar', 'foo');

myMap.get('bar');   // Returns "foo"
myMap.get('baz');   // Returns undefined

Specifications

Specification

ECMAScript (ECMA-262)The definition of 'Map.prototype.get' in that specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
`get`	Chrome Full support 38	Edge Full support 12	Firefox Full support 13	IE Full support 11	Opera Full support 25	Safari Full support 8	WebView Android Full support 38	Chrome Android Full support 38	Firefox Android Full support 14	Opera Android Full support 25	Safari iOS Full support 8	Samsung Internet Android Full support 3.0	nodejs Full support 0.12 Full support 0.12 Full support 0.10 Disabled' Disabled' From version 0.10: this feature is behind the `--harmony` runtime flag.

Legend

Full support: Full support
User must explicitly enable this feature.': User must explicitly enable this feature.