Another example of the module pattern that exposes the module a little differently and makes use of a shared private cache. This method encourages more of an object creation approach where we can optimize performance by being efficient with shared storage.

JSModulePattern2.js

var MyModule = ( function( window, undefined ) {

// this object is used to store private variables and methods across multiple instantiations
var privates = {};

function MyModule() {

this.myMethod = function myMethod() {
alert( 'my method' );
};

this.myOtherMethod = function myOtherMethod() {
alert( 'my other method' );
};

}

return MyModule;

} )( window );

// example usage
var myMod = new MyModule();
myMod.myMethod(); // alerts "my method"
myMod.myOtherMethod(); // alerts "my other method"