#!/usr/bin/ruby # ## https://rosettacode.org/wiki/Filter # var arr = [1,2,3,4,5]; # Creates a new array var new = arr.grep {|i| i %% 2}; say new.dump; # => [2, 4] # Destructive (at variable level) arr.grep! {|i| i %% 2}; say arr.dump; # => [2, 4]
