/********* section 1 *********/

ExampleClass = function(){};

ExampleClass.method = function(customMsg){  

    console.log((customMsg === undefined)?

                    "I am a new method." :

                     customMsg);}

ExampleClass.method();

​

​

​

/********* section 2 *********/

// var someInstance = new ExampleClass();

// someInstance.method();

​

​

​

/********* section 3 *********/

// ExampleClass = function(){};

// ExampleClass.prototype.method = function(customMsg){  

//     console.log((customMsg === undefined)?

//                     "I am a new method." :

//                      customMsg);}

// // ExampleClass.method();

​

// var someInstance = new ExampleClass();

// someInstance.method('called from instance');