notes-ruby

from http://groups.google.com/group/comp.lang.python/browse_thread/thread/c41594596595e511/028422d707512283?#028422d707512283 (Alexander Schmolck), 2 counterintuitive ruby behaviors:

  irb(main):001:0> [1,2].sort
  [1, 2]
  irb(main):002:0> [1,2].sort!
  [1, 2]
  irb(main):003:0> [1].sort
  [1]
  irb(main):004:0> [1].sort!
  nil
  ^^^ !!!

  irb(main):017:0> x = 10
  10
  irb(main):018:0> [1,2,3].reject {|x| x < 2}
  [2, 3]
  irb(main):019:0> x
  3