The delete()
method removes the specified element from a Map
object.
myMap.delete(key);
Map
object.true
if an element in the Map
object existed and has been removed, or false
if the element does not exist.delete
methodvar 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.
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 |
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 | ? |
© 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