The clear()
method removes all elements from a Map
object.
Syntax
myMap.clear();
Return value
Examples
Using the clear
method
var myMap = new Map(); myMap.set('bar', 'baz'); myMap.set(1, 'foo'); myMap.size; // 2 myMap.has('bar'); // true myMap.clear(); myMap.size; // 0 myMap.has('bar') // false
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Map.prototype.clear' in that specification. |
Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'Map.prototype.clear' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 38 | 12 | 19 | 11 | 25 | 8 |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | 38 | 38 | 12 | 19 | 11 | 25 | 8 |