Hi,
Apologies if this has already been answered somewhere, I couldn’t find it. In the solutions to the Regular Expressions: Restrict Possible Usernames exercise there is a mixture of long hand and short hand used (eg [0-9] and \d are both used in the solution). As I understand it they are interchangeable so wouldn’t it make more sense/be easier to read if one was used throughout? Or is there a reason to sometimes use one and sometimes the other?
Thanks!