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Christopher Borchardt
2,908 PointsFault catching in guessing game
I am working on my number guessing javascript game. As the code is written it works fine. The only problem I have is if the user puts in text, or a blank on the actual guess there is no catch for it like there is if the incorrect guess is put in when selecting the range for the guessing game.
I have tried several different ways to get a similar while loop to run where the prompt is for a guess, but every time it breaks the code.
1 Answer
Steven Parker
230,274 PointsI'm guessing you probably copied the starting and ending of your while and left off the return at the end, right?
The catch is while (failed = true) will never end, since just one equal sign (=) is an assignment, not a test. It works in getNumbers because of the return, which ends the loop and the function.
Also, when testing a value for true, you don't need to compare it at all, just name it, like this: while (failed).
Some other things to keep in mind while creating your loop:
- be sure to declare any variables before the loop (not inside) if you will use them after the loop (like "guess")
- be sure you use parseInt on your input before you test it with isNaN
- be sure you are comparing numbers (currently
else if (guess < randomNumber)compares a string to a number)
With these hints, I will bet you can make it work now.
Christopher Borchardt
2,908 PointsChristopher Borchardt
2,908 Pointsthank you for the hints, i did in fact make it work.
https://w.trhou.se/a9s08fg57q
that is my current code.
Christopher Borchardt
2,908 PointsChristopher Borchardt
2,908 Pointshttps://w.trhou.se/cml5kwuzkd
ok this should be my last version. in this version I added a check to make sure the guess isn't lower than the low end, or higher than the upper end selected by the user.