xunzhaoshitouyu

``` var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]; function recovery(array) { const length = array.length; let newArray = []; for (let...

[demo](https://codepen.io/xzsty/pen/rNNXmdj) ``` 商品秒杀 企业团购 私码通道 铁粉卡 以旧换新 话费充值 ``` ``` .container { width: 100%; height: 400px; background: #524940; display: flex; flex-direction: column; } .row { flex: 1; display: flex; }...

```js (function() { // closest if (!Element.prototype.closest) { Element.prototype.closest = function(selector) { var nodeList = document.querySelectorAll(selector); var targetElement; var flag = false; var findTarget = function(ele) { if (nodeList.length >...