JS Practice — Built-in Objects

Set keys() — spread to array

📖 Usage Example

const s = new Set([1, 2, 3])
for (const k of s.keys()) {
  console.log(k) // 1, 2, 3
}

Use Set.keys() to iterate over the values of a set (identical to values()).

Set.prototype.keys()

Spread keys() to get all values as an array.

Challenge: Verify that [...set.keys()] gives the correct array.

💡 Hints (1)