module definition in all envs

define.js

if (typeof module !== 'undefined' && module.exports) {
		module.exports = myModule;
	} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd){
		// AMD. Register as an anonymous module.
		define(function () {
			return myModule;
		});
	} else {
		window.myModule = myModule;
	}