如何检查json中的空值？

Question

下面是我的 JSON

{
  "mname":
   [
     {
       "Mname":"abc",
       "pname":[],
       "rewards":null
     }
   ]
}

如何检查reward数组是否包含空值？

Answer 1

试试这个代码，

    var data = {
         "mname": [
             {
                "Mname": "abc",
                "pname": [],
                "rewards": null
             }
          ]
     }

     $.each( data.mname , function( key, value ) {
         if(value.rewards == null || value.rewards == undefined){
                 // Add your codes/logic
         }
     });

Answer 2

试试这个

var data = {
  "mname":
   [
     {
       "Mname":"abc",
       "pname":[],
       "rewards":null
     }
   ]
}

if(data.mname[0].rewards == null || data.mname[0].rewards == undefined){


}