Get value from json response

Question

I have following JSON response received from server:

   {
    "msg": "S",
    "comments": {
        "iRecords": [{
            "id": "9",
            "bid": "1",
            "uid": "5",
            "comment": "This is # 009",
            "adate": "Tuesday, 5th April, 2011 11:15:05",
            "status": "1",
            "userid": "5",
            "username": "pavlos",
            "oauthprovider": "l",
            "profile_link": null
        }]
    }
  }

Iam using following javascript/jQuery to get values but it is showing nothing:

obj = jQuery.parseJSON(responseText);
alert(obj.comments.iRecords[adate]);

Note: alert(obj.msg); is working fine.

How can I get value of adate in Javascript.

Thanks in advance

Answer 1

iRecords holds an array of objects, so you need to access the first index of the array to get to the first object:

obj = jQuery.parseJSON(responseText); 
alert(obj.comments.iRecords[0]["adate"]);

or

alert(obj.comments.iRecords[0].adate);

Answer 2

You haven't defined a variable called adate and iRecords is an array

If you use square bracket notation then you have to pass in a string containing the property name, not a variable with the same name as the property.

obj.comments.iRecords[0].adate;

Answer 3

obj有一个comment对象，该对象具有一个iRecods成员，该成员是一个包含1个元素的数组；因此，

x = obj.comments.iRecords[0].adate