json字符串、json對象、數組 三者之間的轉換

json字符串轉化成json對象

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

json對象轉化成json字符串

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

例如

例如：

<script type="text/javascript">
        var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部門"},{"id":"01","open":false,"pId":"0","name":"A部門"},{"id":"011","open":false,"pId":"01","name":"A部門"},{"id":"03","open":false,"pId":"0","name":"A部門"},{"id":"04","open":false,"pId":"0","name":"A部門"}, {"id":"05","open":false,"pId":"0","name":"A部門"}, {"id":"06","open":false,"pId":"0","name":"A部門"}]';
      //  var jsonObj = $.parseJSON(jsonStr);
      var jsonObj =  JSON.parse(jsonStr)
        console.log(jsonObj)
     var jsonStr1 = JSON.stringify(jsonObj)
     console.log(jsonStr1+"jsonStr1")
    </script>

json對象轉化成數組

<script type="text/javascript">
        var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部門"},{"id":"01","open":false,"pId":"0","name":"A部門"},{"id":"011","open":false,"pId":"01","name":"A部門"},{"id":"03","open":false,"pId":"0","name":"A部門"},{"id":"04","open":false,"pId":"0","name":"A部門"}, {"id":"05","open":false,"pId":"0","name":"A部門"}, {"id":"06","open":false,"pId":"0","name":"A部門"}]';
      //  var jsonObj = $.parseJSON(jsonStr);
      var jsonObj =  JSON.parse(jsonStr)
        console.log(jsonObj)
     var jsonStr1 = JSON.stringify(jsonObj)
     console.log(jsonStr1+"jsonStr1")
     var jsonArr = [];
     for(var i =0 ;i < jsonObj.length;i++){
            jsonArr[i] = jsonObj[i];
     }
     console.log(typeof(jsonArr))
    </script>