Javascript 角度：使用角度删除obj中的某些属性

这是我的数据：

$scope.datas = {
      "name": "000",
      "id" : 1,
      "type" : "record"
      "children": [
        {name:111,id:2,children:[
          {name:444,id:5,children:[]}
        ]}
        {name:222,id:3,children:[]}
        {name:333,id:4,children:[]}
      ]
    }

deleteNode = (node,id) ->
    if node.id == id
      $timeout ->
        console.log 'findNode',node
        node = null
        return
    if node.children
      for rows,i in node.children
        if rows.id == id
          $timeout ->
            console.log 'findNode',rows
            rows = null
        else
          deleteNode(rows,id)

这是我的删除功能：

$scope.datas = {
      "name": "000",
      "id" : 1,
      "type" : "record"
      "children": [
        {name:111,id:2,children:[
          {name:444,id:5,children:[]}
        ]}
        {name:222,id:3,children:[]}
        {name:333,id:4,children:[]}
      ]
    }

deleteNode = (node,id) ->
    if node.id == id
      $timeout ->
        console.log 'findNode',node
        node = null
        return
    if node.children
      for rows,i in node.children
        if rows.id == id
          $timeout ->
            console.log 'findNode',rows
            rows = null
        else
          deleteNode(rows,id)

我需要在我的

$scope.data

执行此函数后，

deleteNode（$scope.datas，5）

它确实找到了正确的obj，但是

$scope.data

没有改变，为什么

找到答案后，我将

deleteNode

函数更改为

---

尝试在对对象进行更改后返回该对象，即

deleteNode = (node,id) ->
    if node.id == id
      $timeout ->
        console.log 'findNode',node
        node = null
         // return the node 
        return node;
    if node.children
      for rows,i in node.children
        if rows.id == id
          $timeout ->
            console.log 'findNode',rows
            rows = null
            // return the node 
            return node;
        else
          deleteNode(rows,id)

尝试使用

deleteNode = (node,id) ->
 if node.id == id
   $timeout ->
     console.log 'findNode',node
     node = null
     $timeout(angular.noop)
    return
if node.children
  for rows,i in node.children
    if rows.id == id
      $timeout ->
        console.log 'findNode',rows
        rows = null
        $timeout(angular.noop)
    else
      deleteNode(rows,id)