Rails - Mar 2006 - How to write ! version of non ! method?

Hi!

How to write i.e. array.join! based on array.join method?

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On 3/14/06, szymek <g0nzo@o2.pl> wrote:
> Hi!
>
> How to write i.e. array.join! based on array.join method?
What could this possibly mean?  You have an array and you want to
store a string inside of it?

It would help if you could explain what you''re really trying to do.

-- James

Hi --

On Tue, 14 Mar 2006, szymek wrote:
> Hi!
>
> How to write i.e. array.join! based on array.join method?
array = []
def array.join!(sep=$,)
   join(sep)
end

But I doubt that''s what you mean :-)

! means a "dangerous" version of a method.  I''m not sure what
a join
can do that''s dangerous.  Many ! methods change their receivers, but
you can''t change an array object into a string object.


David

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David A. Black (dblack@wobblini.net)
Ruby Power and Light, LLC (http://www.rubypowerandlight.com)

"Ruby for Rails" chapters now available
from Manning Early Access Program! http://www.manning.com/books/black

> you can''t change an array object into a string object
With all these one_line_that_does_billions_of_things methods in ruby i 
tried to reuse my array variable to store a string, so i won''t have to 
introduce new variable. I forgot that it will be different object :)

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