From: surrender_it@... (gabriele renzi @ google)
Date: 2004-03-19T21:44:30+09:00
Subject: why yield does not set $_  ?

Hi,

Probably I just need to sleep, but I wonder: why $_ from yield?
It would be useful for iterators' loops.

I'd expect this to work:
file.each { gsub /a/,'b'}
(using Kernel#gsub)

but it does not. Are there performance reasons or something else for
this?


Notice that, in general, I don't like $_ and hope it disappears, but
while it is still there I'm someway seduced from it..

PS <not_so_semiserious>
On this line, it would be even interesting to default every method
called withouth a receiver to $_

[1,2,3].map { .+ 1} #=> [2,3,4]

We could even kill Kernel::gsub, ::split and the likes as we can
achieve similar result with just a '.' more..

or:
[1,2,3].any? { .==1}

BTW, I suppose ruby would become perl this way..
</not_so_semiserious>