JavaScript Pseudoclassical Subclass example

car_van.js

console.clear();

function Car(name, loc) {
    this.name = name;
    this.loc = loc;
}
Car.prototype.move = function(){
    this.loc++;
    console.log(this.name + "'s location is now " + this.loc.toString());
};

var Van = function(name, loc) {
    Car.call(this, name, loc);
}
Van.prototype = Object.create(Car.prototype);
Van.prototype.constructor = Van;
Van.prototype.grab = function() {
    console.log(this.name + ' grabbed you.')
}

var zed = new Car('zed', 3);
zed.move();


var amy = new Van('amy', 9);
amy.move();
amy.grab();