Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops A Closer Look at Loop Conditions

Posted by Adam Fournace
Adam Fournace
3,124 Points

Code doesn't work on Opera but does work on Firefox. What would cause this since this is basic Javascript?

var upper = 10000;
var randomNumber = getRandomNumber(upper);
var guess;
var attempts = 0;

function getRandomNumber(upper) {
  return Math.floor( Math.random() * upper ) + 1;
}

while(guess !== randomNumber){
  guess = getRandomNumber(upper);
  attempts += 1;
}

  document.write("<p>The random number was : " + randomNumber + "</p>");
  document.write("<p>It took the computer" + attempts + "attempts</p>");
Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

For code formatting, use 3 backticks (```) instead of apostrophes ('''), and on a separate line.