set.clear

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 2017 Draft (ECMA-262) The definition of 'Set.prototype.clear' in that specification.	Draft

Browser compatibility

See also

• Set
• Set.prototype.delete()