The clear() method removes all elements from a Map object.
Map.prototype.clear()
Try it
Syntax
clear()
Return value
Examples
Using clear()
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
Browser compatibility
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
clear |
38
|
12
|
19
|
11
|
25
|
8
|
38
|
38
|
19
|
25
|
8
|
3.0
|
1.0
|
0.12.0
|
See also
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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/clear
