From: Rodrigo Rosenfeld Rosas <rr.rosas@...>
Date: 2011-12-15T20:50:49+09:00
Subject: [ruby-core:41676] Re: [ruby-trunk - Feature #5766][Open] Hash.each_with_object should behave differently when block's arity is 3

Em 15-12-2011 03:14, Yukihiro Matsumoto escreveu:
> Hi,
>
> In message "Re: [ruby-core:41668] [ruby-trunk - Feature #5766][Open] Hash.each_with_object should behave differently when block's arity is 3"
>      on Thu, 15 Dec 2011 13:07:22 +0900, Rodrigo Rosenfeld Rosas<rr.rosas@gmail.com>  writes:
>
> |Enum.each_with_object is very handy in lots of situations, but specially while dealing with arrays. It would be great to be able to use it with hashes like below:
> |
> |{a: 1}.each_with_object([]){|k, v, object| ...}
>
> Try
>
>    {a: 1}.each_with_object([]){|(k, v), object| ...}

Great, thanks Matz! I didn't know that. I had tried {|[k, v], object|} 
before but haven't think about the parenthesis :)