How to define a module for both AMD and CommonJS compatibility

module.js

/**
 * Registers module as CommonJS or AMD if support is found
 * and creates an exports object for the module to use
 * 
 * @param  {boolean} cjs
 * @param  {boolean} amd
 * @param  {Object} ex
 * @return {Object}
 */
var exports = (function(cjs, amd, ex){
	if (cjs) module.exports = ex; else if (amd) define(ex); return ex;
})(typeof module == 'object', typeof define === 'function', {});


// example of private method
var privateMethod = function(){
	console.log('Hello inside world');
};


// example of public method
exports.publicMethod = function(){
	console.log('Hello outside world');
};