The clear()
method removes all elements from a Map
object.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
Syntax
myMap.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
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Map.prototype.clear' in that specification. |
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.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
clear | Chrome Full support 38 | Edge Full support 12 | Firefox Full support 19 | IE Full support 11 | Opera Full support 25 | Safari Full support 8 | WebView Android Full support 38 | Chrome Android Full support 38 | Firefox Android Full support 19 | Opera Android Full support 25 | Safari iOS Full support 8 | Samsung Internet Android Full support 3.0 | nodejs Full support 0.12 |
Legend
- Full support
- Full support