The size property of the Set returns the number of elements in it.
const numbers = new Set([1, 2, 3, 4]);
const numbersSize = numbers.size;
console.log(numbersSize);
// 4
The size property of the Set returns the number of elements in it.
const numbers = new Set([1, 2, 3, 4]);
const numbersSize = numbers.size;
console.log(numbersSize);
// 4