javascript module patter

js module.js

//The module pattern
var feature = (function() {

	var sidewaysTriangle = function(n) {
		for(var i=0; i<n; i++) 
		{
			var output = "";
			for(var j=0; j<=i; j++)
			{
				output+="*";
			}
			console.log(output);
			output = "";
		}

		for(var i=0; i<n; i++)
		{
			var output = "";
			for(var j=n-1; j>i; j--)
			{
				output+="*";
			}
			console.log(output);
			output = "";
		}

	}; 

	//public API
	return {
		publicIsoceles: isoceles,
		sidewaysTriangle: sidewaysTriangle

	};

})();

feature.sidewaysTriangle(4);