The clear() method removes all elements from a Set object.

Syntax

mySet.clear();

Return value

undefined.

Examples

Using the clear method

var mySet = new Set();
mySet.add(1);
mySet.add('foo');

mySet.size;       // 2
mySet.has('foo'); // true

mySet.clear();

mySet.size;       // 0
mySet.has('bar')  // false

Specifications

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Set.prototype.clear' in that specification.
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'Set.prototype.clear' in that specification.
Draft  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support38121911258
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support38381219258 ?

See also

Document Tags and Contributors

 Contributors to this page: wbamberg, fscholz, jameshkramer, nmve, kdex, eduardoboucas, realityking
 Last updated by: wbamberg,