From: Frederick Cheung <frederick.cheung@...>
Date: 2008-08-01T20:20:28+09:00
Subject: Re: String function to delete characters


On 1 Aug 2008, at 12:15, Prasad wrote:

> Hi all,
>
>     Do we have a string function in RUBY to delete 1st  3 characters
> or last 3 character or 3 characters in middle from the string.
>
> Ex:
>
>     user =    aaaPrasadxxxPrasadxxx
>
> from above string "user"  I want to delete 1st characters "aaa"
> In the same way I want to delete last 3 characters "xxx"  and , need
> to delete middle 3 characters "xxx"
>
> to delete last 3 character &  1st 3 characters,  i have used code as
> below;
>

Depending on what you're doing, gsub/gsub!, slice/slice! or delete may  
be what you want

gsub allows you to replace the portions of the string matching a pattern
slice/slice! are for extracting/deleting the characters in a given range
delete removes occurences of a particular string

Fred


>        user = user.chop.chop.chop
>
>       user = user.reverse.chop.chop.chop.reverse
>
> Other than this do we have any other string function in ruby?
>
> could you please help in this issue.
>
> Regards,
> Prasad.
>