From: Sam Sungshik Kong <ssk@...>
Date: 2004-06-09T09:38:38+09:00
Subject: Re: How can I use the last returned value?

Hi!

Thanks for the reply.

However, I cannot do it.
Could you elaborate a little bit more?

I use Windows XP.
And I brought up 'irb' and tried the following:

irb(main):001:0> irb.conf[:EVAL_HISTORY]=1000
irb#1(main):001:0> irb.conf[:SAVE_HISTORY]=100
irb#2(main):001:0> 3+3
=> 6
irb#2(main):002:0> _
=> nil
irb#2(main):003:0>

What's wrong?

Thanks again.

Sam
<nobu.nokada@softhome.net> wrote in message
news:200406082253.i58MrAwl019111@sharui.nakada.niregi.kanuma.tochigi.jp...
> Hi,
>
> At Wed, 9 Jun 2004 02:03:37 +0900,
> Dennis Ranke wrote in [ruby-talk:102807]:
> > > In Python, I use '_'(underscore) for the last returned value.
> > >>>> print "Hello"
> > > "Hello"
> > >>>> x = _
> > >>>> print x
> > > "Hello"
> > >
> > > What is the equivalent in Ruby?
> >
> > If you mean what's the equivalent in irb then my answer would be:
> >
> > IRB.CurrentContext.last_value
> >
> > But that's a bit cumbersome ;)
>
> EVAL_HISTORY enables _.
>
> $ grep HISTORY ~/.irbrc
> IRB.conf[:EVAL_HISTORY] = 1000
> IRB.conf[:SAVE_HISTORY] = 100
>
> $ irb
> irb(main):001:0> 2+2
> => 4
> irb(main):002:0> _
> => 4
> irb(main):003:0>
>
> -- 
> Nobu Nakada
>
>