>[success] # 30s Array -- 個人感覺不常用篇章 * [x-prod](https://www.30secondsofcode.org/js/s/x-prod) ~~~ [1, 2], ['a', 'b'] =>[[1, 'a'], [1, 'b'], [2, 'a'], [2, 'b']] ~~~ * [zip](https://www.30secondsofcode.org/js/s/zip) ~~~ ['a'], [1, 2], [true, false] => [['a', 1, true], [undefined, 2, false]] ~~~ * [unzip](https://www.30secondsofcode.org/js/s/unzip) ~~~ [['a', 1, true], ['b', 2]] => [['a', 'b'], [1, 2], [true]] ~~~