jinjinjin

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// 原始 list 如下 let arr = [ { id: 1, name: "广东", children: [ { id: 11, name: "深圳市", children: [ { id: 111, name: "南山区" }, { id:...

> 请问,为什么要 fn.apply(this, arguments);而不是这样 fn() 可以this 指向 以及当前的数据也都传递给下面都方法

```js let render = (template, context)=>{ let tem = template let reg = /\{\{(\w{1,})\}\}/g; return tem.replace(reg,function(v,x,y){ return context[x.trim()] }) } ```

var maxSlidingWindow = function(nums, k) { let axx = [] let fun = function(){ let arr = nums.slice(0,k) axx.push(Math.max(...arr)) } fun() while(nums.length>k){ nums.shift() fun() } return axx };