Question

I need some input.

Say you have an int-based Enum with values 1 through 10. If you then have a variable that is, say, value corresponding to 7, how can you easiest set it to next value in the given range without going out of bounds? If the value reaches the limit, it should reset itself to first in the range.

I want a one-liner solution to this. I don’t want to do ++ and then check and reset value, plus it has to work in both C# and JavaScript. I suppose something in the Math object might be of help, I don’t know…

thanks

Answer 1

Increment, subtract 1, then modulo, then add 1 (since your Enum is 1-based).

((++i - 1) % N + 1

(N=10, the maximum value your Enum can take on.)