From: Alex Young <alex@...>
Date: 2007-02-13T02:17:29+09:00
Subject: Re: One-Liners (#113)

Robert Dober wrote:
> On 2/12/07, Eric I. <rubytraining@gmail.com> wrote:
>>
>> On Feb 12, 1:07 am, "Phrogz" <g...@refinery.com> wrote:
>> > On Feb 11, 4:40 pm, Alex Young <a...@blackkettle.org> wrote:
>> >
>> > > # One-level flatten().
>> > >    r=[];quiz.each{|a|r+=[*a]};r
>> >
>> > Elegantly small!
>>
>> When I saw that, I thought that it could definitely be shortened by
>> using an inject.  After all, there'd be no assignments of r, no final
>> returning of r, no semicolons.  But when all was said and done, it
>> ended up being the same length.  Compare:
>>
>>     quiz.inject([]){|r,a|r+[*a]}
Given the equal lengths, I prefer this - the r=[];...;r idiom strikes me 
as rather ugly.

>>     r=[];quiz.each{|a|r+=[*a]};r
>>     
>> Oh well....
>>
>> Eric
> 
> 
> Comparing this with James' solution we can it down to
> quiz.inject{|r,a|[*r]+[*a]}
Wow :-)

-- 
Alex