> Given this array:
> foo = %w { FOO BAR baz biz }
>
> How do I make all the entries uppercase in a short and readable way?
>
> The (to me) obvious solution won't work:
> foo.map! { |x| x.upcase! }
> as upcase returns nil if it doesn't have anything to upcase...
> //F
try,
irb(main):004:0> foo.each{|x| x.upcase!}
=> ["FOO", "BAR", "BAZ", "BIZ"]
Thomas
kind regards -botp
···
Fredrik Jagenheim <jagenheim@gmail.com> wrote: