Call An Asynchronous Javascript Function Synchronously

Question

First, this is a very specific case of doing it the wrong way on-purpose to retrofit an asynchronous call into a very synchronous codebase that is many thousands of lines lo

Answer 1

Take a look at JQuery Promises:

http://api.jquery.com/promise/

http://api.jquery.com/jQuery.when/

http://api.jquery.com/deferred.promise/

Refactor the code:

    var dfd = new jQuery.Deferred();


    function callBack(data) {
       dfd.notify(data);
    }

    // do the async call.
    myAsynchronousCall(param1, callBack);

    function doSomething(data) {
     // do stuff with data...
    }

    $.when(dfd).then(doSomething);