Javascript methods in classes

[u0206397]

I notice there are more than 1 way to define methods in pure Javascript (not ES6, ES2016).

Style 1: Using Prototype

var Example = function(data){
    this.data = data;
}

Example.prototype = {
    doSomething: function( parameter ) {
        alert( "Busy doing something" );
    }
}

Style 2: Returning an array within class definition

var Example = function(data) {
    this.data = data;

    return {
        doSomething: function( parameter ) {
            alert( "Busy doing something" );
        }
    }
}

Any difference between the 2 styles? Or just stylistic difference?

 

[TrueBeliever_jh]

maybe this would be helpful?
Methods Within Constructor vs Prototype in Javascript

your 2nd implementation returns an object with a property pointing to a function. and no access to data.

 

[u0206397]

Ah thanks. This addresses my doubt. Will study it in detail.