requirejs shim config.js

<script src="js/require-2.3.6.js" data-main="App.js"></script>


// shim: Configure the dependencies, exports, and custom initialization for older, 
//     traditional "browser globals" scripts that do not use define() to declare 
//     the dependencies and set a module value.

requirejs.config({
    //Remember: only use shim config for non-AMD scripts,
    //scripts that do not already call define(). The shim
    //config will not work correctly if used on AMD scripts,
    //in particular, the exports and init config will not
    //be triggered, and the deps config will be confusing
    //for those cases.
    shim: {
        'backbone': {
            //These script dependencies should be loaded before loading
            //backbone.js
            deps: ['underscore', 'jquery'],
            //Once loaded, use the global 'Backbone' as the
            //module value.
            exports: 'Backbone'
        },
        'underscore': {
            exports: '_'
        },
        'foo': {
            deps: ['bar'],
            exports: 'Foo',
            init: function (bar) {
                //Using a function allows you to call noConflict for
                //libraries that support it, and do other cleanup.
                //However, plugins for those libraries may still want
                //a global. "this" for the function will be the global
                //object. The dependencies will be passed in as
                //function arguments. If this function returns a value,
                //then that value is used as the module export value
                //instead of the object found via the 'exports' string.
                //Note: jQuery registers as an AMD module via define(),
                //so this will not work for jQuery. See notes section
                //below for an approach for jQuery.
                return this.Foo.noConflict();
            }
        }
    }
});

//Then, later in a separate file, call it 'MyModel.js', a module is
//defined, specifying 'backbone' as a dependency. RequireJS will use
//the shim config to properly load 'backbone' and give a local
//reference to this module. The global Backbone will still exist on
//the page too.
define(['backbone'], function (Backbone) {
  return Backbone.Model.extend({});
});

RequireJS -- Embracing the Awesomeness of Asynchronous Modules
Using Require.js to Efficiently Load Javascript Files and Their Dependencies