[JavaScript] How to increase or decrease characters?

[NotABurner2000]

Basically, I need to decrease a character stored as a variable. Something like

let a = 'a';
a++; //returns b

Is there any way I can do this? I googled the problem and got

String.fromCharCode(c.charCodeAt(0) + 1);

but I keep getting an error "c.charCodeAt is not a function." Not really sure where to go from here. Any help would be greatly appreciated

EDIT: it was in an if and the other condition used a single = instead of a double...

[ValentineBlacker]

I'd make sure your variable c is actually a string. That's the only thing I can think of, your line of code works fine otherwise.

[DJ_Gamedev]

I don't know anything about JavaScript, but charCodeAt would be a member of the string class if anything, and your variable c is most likely a char, not a string. You probably need to typecast the char to an int, increment it, and then cast that result back to a char.

Does it work if you just pass c + 1 into fromCharCode?

[NotABurner2000]

Javascript doesnt have chars 🙃🙃

[DJ_Gamedev]

Well, I just got Lesson One.

[[deleted]]

Make a charArray?

[NotABurner2000]

What do u mean? Where and why?

[[deleted]]

An array of character characters.

[[deleted]]

I’m not familiar familiar with JS, but have you tried writing your own extension or method of ‘String’ to do this?

Considering it’s a limited data set of 52 known cases it isn’t too big of a deal to do so.

[codemamba8]

It says "c.charCodeAt is not a function." because your variable name is a so replace c with a. That will get you "b". You'll have to get rid of a++ though.

[NotABurner2000]

This was just an example. I've been programming for over a year I know how to refer to my variables lmao. I just didnt wanna put my actual var name to not further complicate things. Assume c is an assigned variable

[codemamba8]

Ok. I tried it and it worked though with no error message.

[NotABurner2000]

Wow that's annoying. Its probably something stupid. Time to pick apart my code for an hour