删除嵌套JavaScript对象

Question

我一直试图从JavaScript对象中删除嵌套对象，但没有成功，也无法通过搜索前面的帖子找到正确的答案。

这就是我一直在努力做的事情。

<code id='code'></code>

var myobj = {
  "children": [
    {
      "name": "albuterol ",
      "children": [
        {
          "name": "albuterol  - fluticasone ",
          "children": [
            {
              "name": "prednisone ",
              "children": [
                {
                  "name": "dexamethasone ",
                  "children": [],
                  "size": 1,
                  "colname": "CONCEPT_NAME.4"
                }
              ],
              "size": 3,
              "colname": "CONCEPT_NAME.3"
            }
          ],
          "size": 4,
          "colname": "CONCEPT_NAME.2"
        }]}]} 

function deleteObject(myobj) {
    var x = delete myobj.colname
    return (myobj.name, myobj.children)
}

document.getElementById('code').innerText = JSON.stringify(deleteObject(myobj))

我想删除对象colname。我是遗漏了什么，还是代码完全错误？

Answer 1

您需要一个递归函数来删除该属性。

​

var myobj = {
  "children": [
    {
      "name": "albuterol ",
      "children": [
        {
          "name": "albuterol  - fluticasone ",
          "children": [
            {
              "name": "prednisone ",
              "children": [
                {
                  "name": "dexamethasone ",
                  "children": [],
                  "size": 1,
                  "colname": "CONCEPT_NAME.4"
                }
              ],
              "size": 3,
              "colname": "CONCEPT_NAME.3"
            }
          ],
          "size": 4,
          "colname": "CONCEPT_NAME.2"
        }]}]} 

function deleteColnameRecursive(obj){
  delete obj.colname
  if(obj.children){
     for(var i=0;i<obj.children.length;i++)
         deleteColnameRecursive(obj.children[i]);
  }
}

deleteColnameRecursive(myobj);

console.log(myobj);

​

Answer 2

MyObj不直接具有colname属性。MyObj有一个名为Children的数组。

若要删除正确的属性，请选择适当的对象。例如，myObj.children[0].colname