From: xicheng <xicheng@...>
Date: 2006-07-23T01:00:06+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?
>

def print_color(colors)
  if colors.size > 3
      puts colors[0,3].join(', ')+' ...'
  else
      puts colors.join(', ')
  end
end

---
Xicheng