Documentation for routine
uc assembled from the following types:
sub uc(Str(Cool))method uc()
Coerces the invocant (or in sub form, its argument) to Str, and returns it case-folded to upper case (capital letters).
say "Abc".uc; # OUTPUT: «ABC␤»
multi sub uc(Str --> Str)multi method uc(Str: --> Str)
Returns an uppercase version of the string.