JS Practice — Built-in Objects

Symbol.iterator — arrays are iterable

📖 Usage Example

typeof [][Symbol.iterator]   // → 'function'
[...([1, 2, 3])]             // → [1, 2, 3]

Arrays expose Symbol.iterator as a function that enables for...of and spread syntax.

Array Symbol.iterator

Arrays have a Symbol.iterator method that makes them iterable.

Challenge: Verify that [][Symbol.iterator] is a function.

💡 Hints (1)