The clear() method removes all elements from a Set object.
Syntax
mySet.clear();Return value
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. |
Living Standard |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 38 | (Yes) | 19.0 (19.0) | 11 | 25 | 7.1 |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | No support | 25 | (Yes) | 19.0 (19.0) | No support | No support | 8 |