a = ['a', 'b', 'c']
a[a.size - 1] += 'd'  # ok
a.last += 'x'         # not ok

Why aren't these two equivalent?  Seems... weird.

-- 
Colin Steele
colin / webg2.com / www.colinsteele.org / www.rubycookbook.org


		   From "The Hacker's Dictionary":
  peta-: /pe't@/ pref. Multiplier, 10 ^ 15 or [proposed] 2 ^ 50. See
			       {kilo-}.