Hi Antirez, Looking at the source, you use side-effects to return user objects and such. I've always been taught side-effects are a bad thing that create comp

Hi Antirez, Looking at the source, you use side-effects to return user objects and such. I've always been taught side-effects are a bad thing that create complex code, which seems to go against one of the goals listed in your README.md. # Try to authenticate the user, if the credentials are ok we populate the # $user global with the user information. # Otherwise $user is set to nil, so you can test for authenticated user # just with: if $user ... # # Return value: none, the function works by side effect. def auth_user(auth) return if !auth id = $r.get("auth:#{auth}") return if !id user = $r.hgetall("user:#{id}") $user = user if user.length > 0 end Can you explain why you used side-effects?