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map.delete

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

Syntax

myMap.delete(key);

Parameters

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

Return value

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

Examples

Using the delete method

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

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

Specifications

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 38 12 13 11 25 8
Feature Android webview Chrome for Android Edge mobile Firefox for Android Opera Android iOS Safari Samsung Internet
Basic support 38 38 12 14 25 8 ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
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