Function Definition

demo/js/index.js:9687–9726

(ns, dependencies, func, global)

			 * @param {boolean=} global If true, the class will be added to the global scope (typically window unless you define a window.GreenSockGlobals object)
			 */
			Definition = function(ns, dependencies, func, global) {
				this.sc = (_defLookup[ns]) ? _defLookup[ns].sc : []; //subclasses
				_defLookup[ns] = this;
				this.gsClass = null;
				this.func = func;
				var _classes = [];
				this.check = function(init) {
					var i = dependencies.length,
						missing = i,
						cur, a, n, cl, hasModule;
					while (--i > -1) {
						if ((cur = _defLookup[dependencies[i]] || new Definition(dependencies[i], [])).gsClass) {
							_classes[i] = cur.gsClass;
							missing--;
						} else if (init) {
							cur.sc.push(this);
						}
					}
					if (missing === 0 && func) {
						a = ("com.greensock." + ns).split(".");
						n = a.pop();
						cl = _namespace(a.join("."))[n] = this.gsClass = func.apply(func, _classes);

						//exports to multiple environments
						if (global) {
							_globals[n] = cl; //provides a way to avoid global namespace pollution. By default, the main classes like TweenLite, Power1, Strong, etc. are added to window unless a GreenSockGlobals is defined. So if you want to have things added to a custom object instead, just do something like window.GreenSockGlobals = {} before loading any GreenSock files. You can even set up an alias like window.GreenSockGlobals = windows.gs = {} so that you can access everything like gs.TweenLite. Also remember that ALL classes are added to the window.com.greensock object (in their respective packages, like com.greensock.easing.Power1, com.greensock.TweenLite, etc.)
							hasModule = (typeof(module) !== "undefined" && module.exports);
							if (!hasModule && typeof(define) === "function" && define.amd){ //AMD
								define((window.GreenSockAMDPath ? window.GreenSockAMDPath + "/" : "") + ns.split(".").pop(), [], function() { return cl; });
							} else if (ns === moduleName && hasModule){ //node
								module.exports = cl;
							}
						}
						for (i = 0; i < this.sc.length; i++) {
							this.sc[i].check();
						}
					}
				};
				this.check(true);
			},

			//used to create Definition instances (which basically registers a class that has dependencies).
			_gsDefine = window._gsDefine = function(ns, dependencies, func, global) {