Javascript Module pattern template. Shows a class with a constructor and public/private methods/properties. Also shows compatibility with CommonJS(eg Node.JS) and AMD (eg requireJS) as well as in a browser.

Module.js

/**
 * Created with JetBrains PhpStorm.
 * User: scotty
 * Date: 28/08/2013
 * Time: 19:39
 */
;(function(global){
	"use strict";

	var M = function() {

		// Constructor. arguments are passed
		// from Module() call. this refers to m.
		function init() {
			meth_priv2();
			m.meth_pub2();
		}

		// Empty object, to be populated with
		// public properties and methods.
		var m = {};

		// Private properties. define using var x.
		// closure keeps them private.
		var prop_priv = "private property";

		// public properties. define using m.x.
		m.prop_pub = "public property";

		// private methods. define as var x = function() {}
		// closure keeps them private.
		var meth_priv = function() {
			console.log(prop_priv);
			console.log(m.prop_pub);
		};

		var meth_priv2 = function() {

			// access another priv method
			meth_priv();

			// access a pub method
			m.meth_pub();
		};

		// public methods. define as m.x = function() {}
		// private props/methods accessed via x.
		// public props/methods accessed via m.x
		m.meth_pub = function() {
			console.log(prop_priv);
			console.log(m.prop_pub);
		};

		m.meth_pub2 = function() {

			// access a priv method
			meth_priv();

			// access another pub method
			m.meth_pub();
		};

		// call the constructor
		init.apply(m, arguments);
		return m;
	};

	// determine correct export method depending upon
	// environment that this script was loaded in:
	if (typeof module != 'undefined' && module.exports) {
		module.exports = M; // Node / CommonJS...
	} else if (typeof define === 'function' && define.amd) {
		define('Module', [], M); // or RequireJS / AMD...
	} else {
		global.Module = M; // or browser
	}

})(this.window || global);

Influences:

http://www.2ality.com/2011/08/universal-modules.html
https://github.com/millermedeiros/crossroads.js/blob/776f603c/dist/crossroads.js#L340-357
http://www.2ality.com/2012/07/amdefine.html
http://www.sitepen.com/blog/2010/09/30/run-anywhere-javascript-modules-boilerplate-code/
http://addyosmani.com/writing-modular-js/