jQuery: wait for function to complete to continue processing?

Question

Hey all. I have, what appears to be, a trivial problem. I have the following JavaScript:

$(function() {
    var r = GetResults();

    for(var i = 0; i <         


        

Answer 1

move your "do stuff with r" block into your $.getJSON callback. you can't do stuff with r until it has been delivered, and the first opportunity you'll have to use r is in the callback... so do it then.

$(function() {
    var r = GetResults();  
});

function GetResults() {
   $.getJSON("/controller/method/", null, function(data) {
       for(var i = 0; i < data.length; i++) {
           // Do stuff with data
       }
       return data;
   });
}