How do I remove certain characters from Strings in cs?

Question

I need an example of code. The RegEx course showed [^0-9], but I don't know how to implement it.

Answer 1

Hello, try my example ;)
And let me know if it helped you!

https://code.sololearn.com/cRAJDLFPdj5g/?ref=app

Answer 2

face a

Answer 3

thanks :)