I lost this bet and don't know why

**IcSilk** · March 28th, 2005, 06:59 PM

Heres the deal ........

I made a bet with a friend that I could write a working javaScript that asked the user for 2 numbers and then displayed the sum, differance, product and quotient of the 2 integers. Its a very easy script but the catch was I had to add quotes for readability and get it done in 3 minutes or less.

I got it done in less then 3 minutes but I still lost the bet because, for some reason it didn't work and now that I have paid my losers wages to my mate I'm trying to debug this thing and as easy of a script that it is ...... I can't see what I did wrong.

Its blowing my mind, so here is my script ........... WHATS WRONG WITH IT???

Code:

&lt;html&gt;
&lt;head&gt;

	&lt;title&gt;Quick JavaScript&lt;/title&gt;

	&lt;script type = "text/javascript"&gt;
	  
		var firstNumber,	   //first string entered by user
		      secondNumber,	 //second string entered by user
		      number1,		     //first number to use 
		      number2,		     //second number to use 
		      sum, 		        //sum of number1 and number2
		      product, 		      //product of number1 and number2
		      differance, 	     //differance of number1 and number2
                      quotient;		     //quotient of number1 and number2

		
		//read first number from user as a string
		  firstNumber = window.prompt("Enter first integer", "0");
		
		//read second number from user as a string
		  secondNumber = window.prompt("Enter second integer", "0");

		//converts numbers from strings to integers
		  number1 = parseInt(firstNumber);
		  number2 = parseInt(secondNumber);


			//performs operations
			  sum = number1 + number2;
			  product = number1 * number2;
			  differance = number1 - number2;
			  quotient = number1 / number2;


		//displays output of operations
		  document.writeln("The sum of " + number1 "and " + number2 + "is " + sum);
		  document.writeln("The product of " + number1 "and " + number2 + "is " + product);
		  document.writeln("The differance of " + number1 "and " + number2 + "is " + differance);
		  document.writeln("The quotient of " + number1 "and " + number2 + "is " + quotient);

	  
	&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;/body&gt;
&lt;/html&gt;

The prompt windows doesn't even come up so it is something in that part of the script.

I know it is probably something blatantly obvious, but my eyes aren't catching it, maybe someone heres eyes will - Im dumbfounded.

**IcSilk** · March 29th, 2005, 05:59 AM

Well after a few hours - I have noticed that many have viewed this post but noone replied - anyways ........... I finally worked it out - not enough "+" signs in the 'document.writeln...' statements ......... go figure

One thing I do not understand though that maybe someone can clarify is:

If the problem was in the 'document.writeln...' statement, why did that hinder the 'window.prompt...' statement from executing?

Shouldn't the first statements have executed and then just not print the outcome?

***Noia*** · March 29th, 2005, 01:55 PM

it was parsed, a flaw was found and the code was never executed as a safety measure.

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