demo

``` function shuffle(arr) { let len = arr.length; let i, t; while (len) { // /随机索引值i是从0-arr.length中随机抽取的 i = Math.floor(Math.random() * (len--)) //把从数组中随机抽取到的值与当前遍历的值互换位置 t = arr[len] arr[len] = arr[i]; arr[i] =...

``` const datas = ["上海野生动物园", "上饶野生动物园", "北京巷子", "上海中心", "上海黄埔江", "迪士尼上海", "陆家嘴上海中心"] const inputSearchText = (val) => { let reg = new RegExp(val) let arr = [] for (let c of...

``` const overlap = (arr) => { let str = arr[0] let count = 0 //使用递归 let fun = (i, s) => { if (i > arr.length - 1) {...