Question

My Javascript alert’s undefined when trying to read the following JSON string:

[
    {
        "number_messages":"3"
    },
    {
        "message1":"abc"
    },
    {
        "message2":"c"
    },
    {
        "message3":"a"
    }
]

I am using AJAX to get this string (it gets trough correctly.

resp=jQuery.parseJSON(response);
alert( resp.number_messages );

My ajax call is:

$.ajax({  
type: 'POST',  
url: 'backend2.php',  
data: dataString,
success: submitFinished,
dataType: 'json'
});  

This alerts “undefined”, no errors show up in dragonfly (it’s like firebug but for opera).

I am quite new to the whole JSON JQuery thing, so it’s prob. something really easy, but I can’t seem to figure it out. I’ve searched for answers and edited my code for over an hour, and still haven’t got it to work.

Answer 1

Try this:

alert( resp[0].number_messages );