From: John Joyce <dangerwillrobinsondanger@...>
Date: 2007-07-14T11:47:10+09:00
Subject: Re: gets


On Jul 13, 2007, at 5:38 PM, Logan Capaldo wrote:

> On 7/13/07, John Joyce <dangerwillrobinsondanger@gmail.com> wrote:
>>
>>
>> On Jul 13, 2007, at 8:31 AM, Jeffrey Bowen wrote:
>>
>> > Thanks
>> > Sometime I'm just slow.  I tried
>> > "test.chomp = gets" but I didn't try "test =
>> > gets.chomp".  The error message most likely told me
>> > what was wrong.
>> >
>> > Thanks
>> > Jeff
>> >
>> > --- Jeffrey Bowen <ja_bowen@yahoo.com> wrote:
>> >
>> >> Of course the code below will not work because gets
>> >> is
>> >> adding /n to the entry.  I know that chomp will
>> >> remove
>> >> the /n but is there away to cut the /n without
>> >> reassigning test1 to another variable IE test2 =
>> >> test1.comp
>> >>
>> >> print "test1 "
>> >> test1 = gets
>> >> puts test1.class
>> >> if test1 == "1"
>> >>         puts "step 1"
>> >> else
>> >>         puts "step 2"
>> >> end
>> >>
>> >> Thanks
>> >> Jeff
>> >>
>> test.chomp = gets
>>
>> and
>>
>> test = gets.chomp
>>
>> Will give you different results.
>> test.chomp will return a chomped value but doesn't permanently chomp
>> the value in test
>> you would need to do
>>
>> test.chomp! = gets
>
>
> You can't do this. (At least not using that syntax). Furthermore it  
> would
> not be able to have the desired semantics anyway.
>
> Your choices are
> test1 = gets.chomp
>
> OR
>
> test1 = gets
> test1 = test1.chomp
>
> OR
>
> test1 = gets
> test1.chomp!
>
> OR
>
> test1 = gets.chomp! # will work in this case, not a good idea from  
> a best
> practices POV
>
> I mighta missed a variation, but you definitely can't do  
> test1.chomp! =
> gets. That's nonsense.
>
> This is the destructive version of chomp, methods ending with !
>> usually modify the receiver in place, others usually don't.
>> The reason my version doesn't need chomp! is because it takes the
>> chomped value of gets and assigns that to test.
>>
>>
>>
You're right I got ahead of myself while typing!
JJ