json字符串、json对象、数组 三者之间的转换

时间：2023-12-21 13:48:44

json字符串转化成json对象

// jquery的方法

var jsonObj = $.parseJSON(jsonStr)

//js 的方法

var jsonObj =  JSON.parse(jsonStr)

json对象转化成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"}]';

      //  var jsonObj = $.parseJSON(jsonStr);

      var jsonObj =  JSON.parse(jsonStr)

        console.log(jsonObj)

     var jsonStr1 = JSON.stringify(jsonObj)

     console.log(jsonStr1+"jsonStr1")

    </script>

json对象转化成数组

<script type="text/javascript">

        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"}]';

      //  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>

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