bar.js

console.log('bar.js is run (should run 2nd)');
 
define(['https://gist.github.com/karlwestin/5396117/raw/foo.js'], function () {
  console.log('complete in bar.js is run (should run 4th)');
  window.divide = function (a, b) {
    return a / b;
  }
});

fiddle.js

// @see http://jsfiddle.net/YbBuG/
console.log('fiddle.js is run (should run 1st)');
 
define(['https://gist.github.com/karlwestin/5396117/raw/bar.js'], function () {
  console.log('callback in fiddle.js is run (should run 5th)');
 
  try { 
    divide(times(4, 6), 3);
  }
  catch (error) {
    console.log(error);
  }
});

foo.js

console.log('foo.js is run (should run 3rd)');
 
window.times = function (a, b) {
  return a * b;
}