#!/usr/bin/ruby

#
## http://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]
