getJSON with return value, Can someone take a look what is wrong here?

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Hello!

Im Trying to return a value from callback function with no success.

Can you see what is wrong here??:

JavaScript

function getval( callback ){
    jQuery.getJSON('http://data.mtgox.com/api/1/BTCUSD/ticker?callback=?', function(data) {
        // We can't use .return because return is a JavaScript keyword.
        callback(data['return'].avg.value);
    });
}

$(function () {
        $(document).ready(function() {
        getval( function ( value ) {
            alert( 'Do something with ' + value + ' here!' );
        } );
    });

});

Here is JSFIddle link: http://jsfiddle.net/kf6qb/1/

Thank you very much!

Posted 15-Apr-13 22:01pm

ערן לוי

Updated 15-Apr-13 22:05pm

Prasad Khandekar

v2

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Comments

vijay__p 16-Apr-13 4:51am

You can not use simple getJSON method for cross domain call, you have to use JSONP. checkout this link
http://stackoverflow.com/questions/6849802/jquery-getjson-works-locally-but-not-cross-domain

Prasad Khandekar 16-Apr-13 5:42am

I suspect that the api you are trying to call is josnp ready.

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Prasad Khandekar · Accepted Answer · 2013-04-15T23:54:00

Hello,

I have created a samll sample which you can use for testing and should help you in achieving what you are trying.

HTML

<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(document).ready(function() {
    getval(showAlert);
});

function getval( callback ) {
    $.getJSON('http://data.mtgox.com/api/1/BTCUSD/ticker')
	.done(function(data) {
		callback(data.return.avg.value);
	});
}

function showAlert(val) {
    alert( 'Do something with ' + val + ' here!' );
}
</script>
</head>
<body>
</body>
</html>

Regards