Set.prototype.clear()

clear() 메서드는 Set 객체를 비웁니다.

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mySet.clear();

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

• Set
• Set.prototype.delete()