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

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

Specification	Status	Comment
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Map.prototype.delete' in that specification.	Standard	Initial definition.
ECMAScript 2017 Draft (ECMA-262) The definition of 'Map.prototype.delete' in that specification.	Draft

Browser compatibility

See also

• Map