Question

I have gotten JSONP working with an anonymous function but can’t get it to work with a named function. This code works (the alert appears with the correct data):

$.getJSON('http://example.com/test.aspx?foo=bar&callback=?',
    function (data) { alert(data.baz) })

However this code does not work (no alert appears):

function dat(data) {
     alert(data.baz)   
}

$.getJSON('http://example.com/test.aspx?foo=bar&callback=dat')

Can you explain why the last code does not work?

EDIT: I took out a non-relevant example

Answer 1

I’m not sure that leaving out the callback is the correct usage (or, at least, I cannot find any documentation that defines what should happen if a callback is not supplied). If you want to use a named function as the callback you can do:

function dat(data) {
    alert(data.baz)   
}

$.getJSON('http://example.com/test.aspx?foo=bar&callback=?', dat);