rails/rails — pull request #5836 by davidcelis (2012-04-13 21:39:57+00:00)
Title: Add Array#rest, a convenience method to return all elements but the first

Splitting a list into the first elements and the rest of the elements (head/teal, car/cdr) is a fairly common pattern in programming. We have .first already, so here's a convenience method for rest.