json字符串json对象数组 三者之间的转换

Posted 2021-01-01 ZhiPeng007

json字符串转化成json对象

1 // jquery的方法
2 var jsonObj = $.parseJSON(jsonStr)
3 //js 的方法
4 var jsonObj =  JSON.parse(jsonStr)

json对象转化成json字符串

1 //js方法
2 var jsonStr1 = JSON.stringify(jsonObj)

例如

例如：

1 <script type="text/javascript">
2       var jsonStr = ‘[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]‘;
3       //  var jsonObj = $.parseJSON(jsonStr);
4       var jsonObj =  JSON.parse(jsonStr)
5         console.log(jsonObj)
6      var jsonStr1 = JSON.stringify(jsonObj)
7      console.log(jsonStr1+"jsonStr1")
8   </script>

json对象转化成数组

 1 <script type="text/javascript">
 2         var jsonStr = ‘[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]‘;
 3       //  var jsonObj = $.parseJSON(jsonStr);
 4       var jsonObj =  JSON.parse(jsonStr)
 5         console.log(jsonObj)
 6      var jsonStr1 = JSON.stringify(jsonObj)
 7      console.log(jsonStr1+"jsonStr1")
 8      var jsonArr = [];
 9      for(var i =0 ;i < jsonObj.length;i++){
10             jsonArr[i] = jsonObj[i];
11      }
12      console.log(typeof(jsonArr))
13     </script>