From: Greg Fodor <gfodor@...>
Date: 2007-05-25T17:15:05+09:00
Subject: Re: Introducing the "it" keyword

> $_ releases after the method.
Ah. This works today:

return $_ if $_ = opts[:user]

But it's still hard to read :)

And don't forget:

$_ = "foo"
puts $_ if ($_ = "bob" && chomp)

will print "foo"! (I feel like I'm back writing Perl again)

> p *my_strings.map(:pluralize).grep(/tests/)
Ah, yes, my ruby-fu is lacking, but it was a contrived
example :) Here's another contrived one.. the gist is
that you may need to use "it" more than just as a passthrough:

my_strings.map { it.substring(it.maxlen) }.filter { it.size > 5 }.each
{ p "#{it}: #{it.size}" }

> def it
>   @it = block_given? ? yield : @it
> end
>
> p it if it{ 'bar' }
>
Neat. Instance variable could leak, but still neat!

And Re: Rspec, well, if the powers that be (not me) like 'it',
then I guess they'll have to move out of the way :)