From: Robert Dober <robert.dober@...>
Date: 2008-07-20T00:28:21+09:00
Subject: Re: Array.drop doesn't work

Is it just me, or is there general confusion?

First of all #drop is not receiver modifying as is e.g. shift.

507/7 > ruby1.9 -e 'x=[1,2,3];x.drop(1);p x'
[1, 2, 3]

And then drop (n) is not returning the first n elements of an array
but all but the first n

512/12 > ruby1.9 -e 'p [1,2,3].drop(1)'
[2, 3]

thus the workaround implementation of 1.8.7.pred would rather be:
class Array
   def drop n; self[n..-1] end
end

HTH
Robert
-- 
http://ruby-smalltalk.blogspot.com/

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