The clear() method of Set instances removes all elements from this set.
Set.prototype.clear()
Try it
Syntax
js
clear()
Parameters
None.
Return value
None (undefined).
Examples
Using the clear() method
js
const mySet = new Set();
mySet.add(1);
mySet.add("foo");
console.log(mySet.size); // 2
console.log(mySet.has("foo")); // true
mySet.clear();
console.log(mySet.size); // 0
console.log(mySet.has("foo")); // false
Specifications
Browser compatibility
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
clear |
38 | 12 | 19 | 25 | 8 | 38 | 19 | 25 | 8 | 3.0 | 38 | 1.0 | 0.12.0 | |
See also
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/clear