Objective: Sum two numbers and print the result in the format “The answer is: X” where X is the sum of the two numbers:
Object-oriented masturbation solution:
function MathLib(){
this.answer = null;
}
MathLib.prototype.sum = function (x,y){
this.answer = x + y;
}
MathLib.prototype.getAnswer = function(){
return this.answer;
}
function Printer(){
this.
preText = ”;
}
Printer.prototype.setPreText = function(
str){
this.preText = str;
}
Printer.prototype.out = function (str){
document.write(this.preText + str);
}
// To run
var math = new MathLib();
var print = new Printer();
math.sum(1,1);
print.setPreText(‘The answer is: ‘);
print.out(math.answer);
