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

code looks correct but will not run

I have checked my code against the video and it looks to be correct, but the program won't fully run when I preview it. I see only "Random Number Guessing Game" and I am not prompted to enter my guess.

There must be an error in my code, but I have not been able to figure out. Is something missing or is the syntax incorrect?

Here is my code:

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>'); }

1 Answer

Steven Parker
Steven Parker
229,644 Points

Unformatted code is very hard to read! 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.

But I did manage to spot this in it:

if (parseInt(guessLess) === randomNumber   { correctGuess = true; }

Note that there is no closing parenthesis at the end of the conditional expression and before the code block.

Hi Steven,

Thanks for the suggestions for submitting code, which I will follow in the future. Also, the problem you spotted must be the error, as the program is now running correctly.

Many thanks!