demo_module_2.js

var counterConsoleAdapter = (function (base) {
	var
		repeat = function(times, m) {
			for (var i = 0; i < times; i++)
					m();
		},
		increment = function (times){
			if (times === undefined) times = 1;
			repeat(times, function () {
				console.log("incrementing counter " +
					base.increment());
			});
		},
		decrement = function (times) {
			if (times === undefined) times = 1;
			repeat(times, function () {
				console.log("decrementing counter " +
					base.decrement());
			});
		},
		reset = function () {
			console.log("reseting counter " + 
				base.reset());	
		}

	return {
		increment: increment,
		decrement: decrement,
		reset: reset
	};

})(counter);

counterConsoleAdapter.increment(4);
counterConsoleAdapter.decrement(2);
counterConsoleAdapter.reset();