litt1esea

这个页面好像是用vue做的

```js const data = [ { id: '1', name: '父节点1', children: [ { id: '1-1', name: '子节点1-1', children: [ { id: '1-1-1', name: '子节点1-1-1' }, { id: '1-1-2', name: '子节点1-1-2'...

```js const arr = [1, [2, 3, [4, 5]], 1, 2, [6, 7]] Array.prototype._flat = function (deep = 1) { let res = [] deep-- for (const p of this)...