Another example of the module pattern implementation in JS

module-pattern-example-2.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"