ExtendedSample extending Sample

function Sample(msg) { this.message = msg; } Sample.prototype = new Object; Sample.prototype.message = msg; Sample.prototype.itClicked = function() { alert(this.message); } var a = new Sample('I heard a click!'); function ExtendedSample(msg, times) { // Create a reference to Sample's constructor this.parent = Sample; // Call constructor in the context of ExtendedSample this.parent(msg); this.repeat = times; } // Use Sample's prototype to extend it ExtendedSample.prototype = new Sample; // Declare the object variables to reference in methods ExtendedSample.prototype.message = undefined; ExtendedSample.prototype.times = 1; // Override the previous declaration of itClicked ExtendedSample.prototype.itClicked = function() { for (var i = 0; i < this.repeat; i++) { alert(this.message); } } var b = new ExtendedSample("I heard that click!", 3);