Jeckhenry

function print(n) { setTimeout(() => { console.log(n); }, 0, Math.floor(Math.random() * 1000)); } for (var i = 0; i < 100; i++) { print(i); }

```js const mostChars = function(str) { if (!str) return ''; let stack = []; let map = new Map(); str.split('').forEach(c => { let last = stack.pop(); if(last === c) {...

```js const permMutation = function (arr) { let res = []; if (arr.length