Prototypal inheritance example

prototype.js

// Prototype Example

var Example = function(a, b) {
  this.product = this.mult(a, b);
  this.power = this.pow(a, b);
};

Example.prototype = {
  mult: function(a, b) {
    return a * b;
  },
  pow: function(num, pow) {
    var n = num;
    while (pow -= 1) n = this.mult(n, num);
    return n;
  }
};

var demo = new Example(2, 3);