JS中如何获取JSON子项的个数或叫length

如有JSON数据格式如下：

{names:"张三","age":16,"sex":‘男’}

或

{"items":["A. 答案一","B. 答案二","C. 答案三","D. 答案四"]}

如何获取JSON子键的数量？挺头疼的。使用以下方法：

<script type="text/javascript">

  var myObject = {"name":"Kasun", "address":"columbo","age": "29"}

  var count = Object.keys(myObject).length;
  console.log(count);
</script>

Object.keys().length 就可以了，你可以试试