From: Sebastian Hungerecker <sepp2k@...>
Date: 2008-10-22T07:22:55+09:00
Subject: Re: Stripping characters off a string

Chris Causer wrote:
> > your_string = "abcdef" # => "abcdef"
> > your_string[-4,4] = '' # => ""
> > your_string            # => "ab"
>
> Does that really work

Yes, it does. If you copy and paste that code into irb, you'll see the exact 
output you see above (minus the # plus newlines plus the irb prompt)


> I always thought that 
>
>  'string'[a,b]
>
> was to take a substring beginning at a of length b.

That's right.


> In your case, you'd 
> just get the last 4 characters 'cdef'.

Leaving the characters "ab", which is exactly what he showed in the code 
above.

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