Fredrik Jagenheim <jagenheim / gmail.com> wrote:
> | 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