javascript中json對象json數組json字符串互轉及取值

1.json類型的字符串轉換為json對象及取值

1 　var jsonString = '{"bar":"property","baz":3}'; 2 var jsObject = JSON.parse(jsonString); //轉換為json對象 3 alert(jsObject.bar); //取json中的值

 2.json對象轉為json類型的字符串

var jsonString = '{"bar":"property","baz":3}'; var jsObject = JSON.parse(jsonString); //轉換為json對象  alert(jsObject.bar); //取json中的值 var st = JSON.stringify(jsObject); //轉換為json類型的字符串　　

3.json數組類型的字符串轉換為json及取值 和json對象轉換為轉換為json字符串

 //json數組類型字符串取值 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 = JSON.parse(jsonStr);//轉換為json對象 for(var i=0;i<jsonObj.length;i++){ alert(jsonObj[i].id); //取json中的值 } console.log(jsonObj) var jsonStr1 = JSON.stringify(jsonObj) console.log(jsonStr1+"jsonStr1")

 結果：