I get the following back from an $.ajax({ POST.....

[{"total_votes":1,"options":[{"id":40,"vote_count":0,"users":[]},{"id":41,"vote_count":1,"users":[{"photo":"xxxxxxxxxxx.png","name":"XXXXX,"id":1}]},{"id":42,"vote_count":0,"users":[]}]}]

so I try to get total_votes with:

    success: function(e) {
        console.log(e['total_votes'])       
    }

also try to get

        console.log( e['options'].length() )
        console.log( e['options'][0]['id'] )

Suggestions on why I keep getting undefined? Also is there a better way to loop through options?

Thanks

I get the following back from an $.ajax({ POST.....

[{"total_votes":1,"options":[{"id":40,"vote_count":0,"users":[]},{"id":41,"vote_count":1,"users":[{"photo":"xxxxxxxxxxx.png","name":"XXXXX,"id":1}]},{"id":42,"vote_count":0,"users":[]}]}]

so I try to get total_votes with:

    success: function(e) {
        console.log(e['total_votes'])       
    }

also try to get

        console.log( e['options'].length() )
        console.log( e['options'][0]['id'] )

Suggestions on why I keep getting undefined? Also is there a better way to loop through options?

Thanks

• javascript
• jquery
• json

• You excluded some important details from your $.ajax() method. Did you set the dataType: property to 'json'? If not, is it being sent from the server with the proper headers? – user113716 Commented Jun 26, 2011 at 18:42
• @AnApprentce, I think ur Json is not correctly formatted. you may need to check the returned type using firbugs in firefox. – tkt986 Commented Jun 26, 2011 at 18:51

5 Answers 5

Your root object is an array, so you would need to do something like e[0]['total_votes']. Also the length of an array is not a function its a property so you would want to do e[0].options.length or e[0]['options'].length.

Loop through them with $.each()

It would be e[0].total_votes according to your example JSON response (it's in an array).

You need to call JSON.parse before dereferencing the JSON object

Formatted ur Json this way, you can get the "total_votes" value like this

success: function(e) {
    console.log(e[0].total_votes);

}

 [
    {
        "total_votes": 1,
        "options": [
            {
                "id": 40,
                "vote_count": 0,
                "users": []
            },
            {
                "id": 41,
                "vote_count": 1,
                "users": [
                    {
                        "photo": "xxxxxxxxxxx.png",
                        "name": "XXXXX",
                        "id": 1
                    }
                ]
            },
            {
                "id": 42,
                "vote_count": 0,
                "users": [
                    {}
                ]
            }
        ]
    }
]

check out here