From: Daniel Schierbeck <daniel.schierbeck@...>
Date: 2006-07-23T01:15:06+09:00
Subject: Re: Showing part of an array....


Rosina Bignall wrote:
> Let's say you have an array which might contain:
>
> colors = ["black","white","red","yellow","green"]
>
> And you'd like to see the first three elements with a ... attached to
> the end if there are more than 3.
>
> "colors[0,2].join(', ') + ' ...' if colors.count > 3"
>
> Which of course is blank in there are less than 3 elements in the array.
>
> How do I limit the if to only working on the ' ...' part?

puts "#{colors[0, 2].join(', ')}#{'...' if colors.length > 3}"