Module Pattern for Browsers, Node, and Applitude

library-module-pattern.js

// Shim support for CommonJS variables. This greatly reduces logic needed.
// Note: all of these variables are supposed to be global, anyway.

var global = global || this, module = module || undefined;

(function (app) {
  'use strict';

  // replace the namespace string with the name of your library
  var namespace = 'librarymodule',

    // replace this api with your library code
    api = {
      foo: function () {
        return 'foo';
      }
    };

  // don't change anything from here down.
  if (app.register) {
    app.register(namespace, api);
  } else {
    namespace = app.exports ? 'exports' : namespace;
    app[namespace] = api;
  }

}(global.applitude || module || this));


// Later, in node:

var librarymodule = require('./lib/librarymodule');

console.log(librarymodule.foo());


// In the browser, without Applitude:

console.log(librarymodule.foo());


// With applitude, your namespace won't pollute the global scope:

console.log(applitude.librarymodule.foo());


// Or inside another module (passing in applitude)...

console.log(app.librarymodule.foo());