data restult from getJSON is undefined

Question

        function getval(data) {
        alert(data['url']);
    }



    $(document).ready(function () {
        var bingAPIUrl = "http://www.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1&mkt=en-US&callback=getval";
        $.support.cors = true;
        var result = $.getJSON(bingAPIUrl, getval(data));

    });

I am trying to get the url property of get the image url from bing, can someone help me why the data result is undefined in my callback function 'getval'

You're not passing `getval`as the callback, you're calling it immediately and passing its return value as the callback. — Emil Lundberg, Jul 19 '14 at 15:02

guest271314 · Answer 1 · 2014-07-19T16:41:55.950

0

getVal = function (data) {
    alert(data.query.results.json.images.url);
};
$.getJSON("https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20json%20where%20url%3D%22http%3A%2F%2Fwww.bing.com%2FHPImageArchive.aspx%3Fformat%3Djs%26idx%3D0%26n%3D1%26mkt%3Den-US%22&format=json&callback=", function(data) {
  getVal(data)
});

edited Jul 19 '14 at 16:41

answered Jul 19 '14 at 16:15

guest271314

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I tried to make similar request directly to bing and still not able to pass data to callback function... – Khaliq Jul 19 '14 at 23:43
function getval(data) { alert(data.json.images.url); } $(document).ready(function () { var bingAPIUrl = "http://www.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1&mkt=en-US&callback="; $.support.cors = true; $.getJSON(bingAPIUrl, '', function(data) { getval(data); }); }); – Khaliq Jul 19 '14 at 23:43
Tried original url as well, returned syntax error (unexpected `:`) although response appear to be valid json . Utilizing https://developer.yahoo.com/yql, should be able to fetch data with `data.query.results.json.images.url` within callback . Note, this should also be possible without jquery , utilizing `script` element with `jsonp` callback function name appended to url. Thanks – guest271314 Jul 20 '14 at 02:13

data restult from getJSON is undefined

1 Answers1