Javascript inheritance

Prototypical  Inheritance


Code Example:

function demo(a){
this.a=a;
}

function sample(){
demo.call(this,20);
this.b=10;
}

var x = new sample();

console.log(x.a)


Classical Inheritance:

Code Example:
function demo(){
this.a=10;
}

function sample(){
this.x=demo();
this.x();
this.b=10;
}

var x = new sample();

console.log(x.a)

Prototype Inheritance

Code Example:

function demo(){

this.a=20;

}

function sample(){

this.b=10;

}

sample.prototype=new demo();

var x = new sample();

console.log(x.a)