JSON parse using Jquery

Question

I'm trying to parse a JSON string using $.getJSON. The string structure is this:

{"status":"1","dati":[{"id":"259","temperatura":"27.5\u00b0C","localita":"Perugia (PG)","distanza":"8.94","altitudine":"493","pioggia":"0.0","pressione":"1013.5","vento":"12.9","minima":"15.9","massima":"27.5","orario":"12\/07\/2013 17.35","url":"http:\/\/www.perugiameteo.it\/standardpage.aspx?id=56","webcam":"http:\/\/www.perugiameteo.net\/webcam\/webcam.jpg","raffica":"30.6","rate":"0.0"}]}

and this is the code that I'm trying to use, but without success (I obtain an undefined value)

<ul id="groups"></ul>

<script type='text/javascript'>
    $(document).ready(function() {
       var $grouplist = $('#groups');
       $.getJSON("URL_FILE", function(MyData){
           $.each(MyData.dati, function() {
           $('<li>' + this.localita + '</li>').appendTo($grouplist);
           });
       });
    });
</script>

Any helps? Thanks in advance!

Your code works: jsfiddle.net/Zu82C inspect the ajax call to make sure it works. — user400654
– user400654, Commented Jul 12, 2013 at 16:02
@Andrea75 that fiddle works too... Your ajax call must not be returning what you think it should. — user400654
– user400654, Commented Jul 12, 2013 at 16:05
Andrea...the jsfiddle you posted will not work because of cross-domain issues. In the console, this error comes up: XMLHttpRequest cannot load mobile.lineameteo.it/…. Origin fiddle.jshell.net is not allowed by Access-Control-Allow-Origin. — Kaizen Programmer
– Kaizen Programmer, Commented Jul 12, 2013 at 16:07
@Andrea75 - Use the jsFiddle JSON echo API if you want to fetch a JSON from other domain. — Derek 朕會功夫
– Derek 朕會功夫, Commented Jul 12, 2013 at 16:12

Karl Anderson · Accepted Answer · 2013-07-12 16:08:58Z

1

Since you have proven via jsfiddles in the comments that it works with local data, then it is obviously an AJAX issue.

Install Fiddler so you can watch the traffic and make the request yourself through Fiddler. It will show the payload being returned.

answered Jul 12, 2013 at 16:08

Karl Anderson

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