Baseline Widely available
The clear() method of Set instances removes all elements from this set.
const set1 = new Set();
set1.add(1);
set1.add("foo");
console.log(set1.size);
// Expected output: 2
set1.clear();
console.log(set1.size);
// Expected output: 0
None.
Return valueNone (undefined).
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
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