dependency injection

common.js

var foo = require("foo"),
    bar = foo.bar;

exports.bar = bar;

commonjs_wrapper.js

define(function(require, exports, module) {
  // your file contents here
});

relay_definition.js

require.setCrossDomain("http://example.com/relay.html",
                       "http://cdn.example.com/relay.html");

require_provide.js

// require two modules
require(["requiredModuleOne", "requiredModuleTwo"],
  // run this callback when modules are loaded
  function(moduleOne, moduletwo) {
    // explicitly declare a dependency is available
    provide(newModuleName, resultWhenRequired);
  }
);