From: Dimitri Aivaliotis <aglarond@...>
Date: 2006-04-07T04:17:44+09:00
Subject: Re: Basic input/output question

Hi Peter,

On 4/6/06, Peter Bailey <pbailey@bna.com> wrote:

> I kind of did what you had here, just a bit simpler:

>         line.gsub(/Microsoft/, "Apple")

Here's where you need a ! -> that line should read:

           line.gsub!(/Microsoft/,"Apple")

(See James' example.)

The "gsub" will act on "line", and return a new object.  On the other
hand, the "gsub!" will change the "line" itself, without creating a
new object.  This is what you want in this case.

In general, when there's an exclamation point version of a method, it
will change the object itself, instead of returning a new, changed
object.

- Dimitri