Set.prototype[@@iterator]()

const set1 = new Set();
set1.add(42);
set1.add("forty two");
const iterator1 = set1[Symbol.iterator]();
console.log(iterator1.next().value);
// Expected output: 42
console.log(iterator1.next().value);
// Expected output: "forty two"

monSet[Symbol.iterator];

const monSet = new Set();
monSet.add("0");
monSet.add(1);
monSet.add({});
const setIter = monSet[Symbol.iterator]();
console.log(setIter.next().value); // "0"
console.log(setIter.next().value); // 1
console.log(setIter.next().value); // {}

const monSet = new Set();
monSet.add("0");
monSet.add(1);
monSet.add({});
for (const v of monSet) {
  console.log(v);
}