1console.log(Array.from('foo'));
2// expected output: Array ["f", "o", "o"]
3
4console.log(Array.from([1, 2, 3], x => x + x));
5// expected output: Array [2, 4, 6]
6

1[...'hello world'] // ['h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd']