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Map.prototype.delete()

The delete() method removes the specified element from a Map object by key.

Try it

Syntax

delete(key)

Parameters

key

The key of the element to remove from the Map object.

Return value

true if an element in the Map object existed and has been removed, or false if the element does not exist.

Examples

Using delete()

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

console.log(myMap.delete('bar')); // Returns true. Successfully removed.
console.log(myMap.has('bar')); // Returns false. The "bar" element is no longer present.

Specifications

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet Deno Node.js
delete
38
12
13
11
25
8
38
38
14
25
8
3.0
1.0
0.12.0
0.10.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete