JS Practice — Built-in Objects

Set Constructor — typeof

📖 Usage Example

const s1 = new Set()          // empty
const s2 = new Set([1, 2, 3]) // from array
console.log(s2.size) // → 3

Use the Set constructor to create a new set, optionally passing an iterable.

Set Constructor

typeof a Set instance returns 'object'.

Challenge: Verify that typeof new Set() is 'object'.

💡 Hints (1)