From: Jim Menard <jim.menard@...>
Date: 2008-12-03T02:15:23+09:00
Subject: Re: Substring with "..."

On Tue, Dec 2, 2008 at 12:00 PM, Jose Antonio Parra <josparbar@gmail.com> wrote:
>  Hi!
>
>  I want to know what is the method to take a string and return a
> substring with 20 characters and "..." if the length of the string is
> greater, or the complete string if it's shorter than 20 characters.
> Thanks all.

Is this a school assignment? What have you tried so far?

You can break this problem down into two parts: grabbing the first 20
characters, and adding the "...". For bonus points, you should handle
the case where the string is already less than 20 characters long,
which would require that you find out how long the string is in the
first place.

You should look at the documentation for the String class, which will
list all of the methods available to you. You can see the list by
typing "ri String" in the shell or visiting
http://www.ruby-doc.org/core/classes/String.html

Jim
-- 
Jim Menard, jimm@io.com, jim.menard@gmail.com
http://www.io.com/~jimm/