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
Mapobject.
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 Latest Draft (ECMA-262) The definition of 'Map.prototype.delete' in that specification. |
Draft |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 38 | (Yes) | 13.0 (13.0) | 11 | 25 | 7.1 |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | No support | 38 | (Yes) | 13.0 (13.0) | No support | No support | 8 |