object.create, applying prototypes

prototyping chaining,
object extension for all the
modern programmers

var Ninja = function () {};

Ninja.prototype.throw = function (item) {
    console.log('Throwing ' + item);
};

var Shinobi = function () {};
Shinobi.prototype =  Object.create(Ninja.prototype);

var shinobi = new Shinobi;
shinobi.throw('knife'); // Throwing knife