modules exports.

defination.js

// A|CMD Module
// Step A: ()()
// Step B: (function() {})(function(){})
// Rock and roll
(function(definition) {
  // RequireJS
  if (typeof define === 'function') {
    define(definition);
  } else {
    definition();
  }
})(function() {
  // Define a module
});

exports.js

(function() {
    /* ... Code that defines MyModule ... */
    var MyModule = {};

    var root;
    if (typeof self !== 'undefined') {
        // Web Worker
        root = self;
    } else if (typeof window !== 'undefined') {
        // Browser
        root = window;
    } else if (typeof global !== 'undefined') {
        // NodeJS
        root = global;
    }

    root.MyModule = MyModule;
    if (typeof module !== 'undefined') {
        module.exports = MyModule;
    }
})();

// Simplified:
(function(root) {
    /* ... Code that defines MyModule ... */
    var MyModule = {};

    root.MyModule = (root.module || {}).exports = MyModule;    
})(this);

// my: exports to window
new function() {
    /* ... Code that defines MyModule ... */
    var MyModule = {};

    this.MyModule = (this.module || {}).exports = MyModule;    
};