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 Basics (Retired) Making Decisions with Conditional Statements Improving the Random Number Guessing Game

Posted by Hanna Reed
Hanna Reed
3,849 Points

Improving the Random Number Guessing Game

I cannot figure this out, it will not run the program. No prompts are popping up and nothing else will happen either. 

var correctGuess = false;
var randomNumber = Math.floor(Math.random() * 6 ) + 1;
var guess = prompt('I am thinking of a number between 1 and 6. What is it?');
if (parseInt(guess) === randomNumber) {
  correctGuess = true; 
} else if ( parseInt(guess) < randomNumber ) {
    var guessMore = prompt('Try again. The number I am thinking of is more than ' + guess);
  if (parseInt(guessMore) === randomNumber) {
      correctGuess = true;
  }
} else if ( parseInt(guess) > randomNumber ) {
    var guessLess = prompt('Try again. The number I am thinking of is less than ' + guess');
  if (parseInt(guessLess) === randomNumber) {
      correctGuess = true;
  }
}
if ( correctGuess ) {
    document.write('<p>You guessed the number!</p>');
} else {
    document.write('<p>Sorry. The number was ' + randomNumber + '.</p>');
}

Moderator edited: Corrected the markdown so the code would render properly. Blank lines missing between the backticks. -JN

I also can't figure out how to format the code when posting through a question.

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Use the instructions for code formatting in the Markdown Cheatsheet pop-up below the "Add an Answer" area. :arrow_heading_down:
Or watch this video on code formatting.

Jennifer Nordell
seal-mask
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

You almost had the markdown spot on! I added "js" to the end of your top set of backticks and a blank line afterwards. Then I added a blank line between your code and the bottom set of backticks. If you click on the question and choose edit, you can see exactly what I did :sparkles:

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! Quite simply, you have a runaway single quotation mark which is causing an error and it can no longer interpret the script. Here's the offending line:

var guessLess = prompt('Try again. The number I am thinking of is less than ' + guess');

It should look like this:

var guessLess = prompt('Try again. The number I am thinking of is less than ' + guess);

//Note the removal of the last single quotation after guess

When I delete that single quotation, your code runs like a charm! :sparkles:

Hanna Reed
Hanna Reed
3,849 Points

thanks lol, hard to find such a small problem!

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

That syntax coloring can be helpful in such cases!