From: Bill Kelly <billk@...>
Date: 2009-11-08T17:43:55+09:00
Subject: [ruby-core:26620] Re: HashWithIndifferentAccess to core


From: "Run Paint Run Run" <runrun@runpaint.org>
>
> FTR, the idiom is also employed by core APIs such as ENV and MatchData:
> 
>>> ENV['TERM']
> => "xterm"
>>> ENV[:TERM]
> => "xterm"
>>> match = 'Finding a needle in a haystack'.match(/(?<needle>ne.+?e)/)
> => #<MatchData "needle" needle:"needle">
>>> match['needle']
> => "needle"
>>> match[:needle]
> => "needle"

That reminds me of where I first experienced this idiom. :)

irb(main):001:0> class Foo ; def kazango!; p 'KAZANGO!' ; end ; end
=> nil
irb(main):002:0> x = Foo.new
=> #<Foo:0xe3416c>
irb(main):003:0> x.send "kazango!"
"KAZANGO!"
irb(main):004:0> x.send :kazango!
"KAZANGO!"


Regards,

Bill