A variant of UserIO.getInput that'll constantly prompt the user until they enter a non-null, non-whitespace-only string.
Notes: The Binder is only used to convert a string to a string, in case there's some weird voodoo you want to do with it.
See Implementation
A variant of UserIO.getInput that'll constantly prompt the user until they enter a non-null, non-whitespace-only string.
Notes: The Binder is only used to convert a string to a string, in case there's some weird voodoo you want to do with it.