From: Florian Frank <flori@...>
Date: 2007-08-19T04:43:49+09:00
Subject: Re: How do you print the first 5 records in an array?

Robert Klemme wrote:
> Although I'm always fond of solutions using #inject in this case I'm 
> sorry to say that but this is not only inefficient but totally 
> obfuscated.  If you feel you have to iterate then you can immediately 
> print members.  These are my preferred solutions
>
> # fast and readable
> 5.times {|i| puts @people[i]}
> 0.upto(4) {|i| puts @people[i]}
>
> # might be less efficient but
> # very readable
> puts @people[0,5]
> puts @people[0...5]
> puts @people[0..4]
Then let's at least use inject to create nice CPS-style solution:

puts_first_five = (0...5).inject(lambda {}) { |f, i| lambda { |a| f[a]; 
puts a[i] } }
puts_first_five[@people]

-- 
Florian Frank