The clear() method removes all elements from a Set object.
mySet.clear();
clear methodvar 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
| 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 |
| 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 | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 38 | 38 | 12 | 19 | 25 | 8 | ? |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/clear