[#71439] [Ruby trunk - Feature #11339] [PATCH] io.c: avoid kwarg parsing in C API — matz@...
Issue #11339 has been updated by Yukihiro Matsumoto.
7 messages
2015/11/11
[#71473] Re: [Ruby trunk - Feature #11339] [PATCH] io.c: avoid kwarg parsing in C API
— Eric Wong <normalperson@...>
2015/11/13
Entire series for sockets
[#71450] Ruby 2.3.0-preview1 Released — "NARUSE, Yui" <naruse@...>
Hi,
5 messages
2015/11/11
[#71617] [Ruby trunk - Feature #11664] [PATCH] introduce rb_autoload_value to replace rb_autoload — nobu@...
Issue #11664 has been updated by Nobuyoshi Nakada.
3 messages
2015/11/20
[#71721] [Ruby trunk - Feature #11741] Migrate Ruby to Git from Subversion — me@...
Issue #11741 has been updated by Jon Moss.
4 messages
2015/11/28
[ruby-core:71404] [Ruby trunk - Feature #11653] Add to_proc on Hash
From:
matz@...
Date:
2015-11-09 08:03:16 UTC
List:
ruby-core #71404
Issue #11653 has been updated by Yukihiro Matsumoto.
Assignee changed from Yukihiro Matsumoto to Nobuyoshi Nakada
Accepted.
Matz.
----------------------------------------
Feature #11653: Add to_proc on Hash
https://bugs.ruby-lang.org/issues/11653#change-54774
* Author: Daniel P. Clark
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
----------------------------------------
Procs can be called the same way a hash is with `[]`. But a Hash is not mappable as a Proc.
~~~ruby
my_hash = ->key{{
a: 1, b: 2, c: 3, d: 4, e: 5, f: 6
}[key]}
my_hash[:a]
# => 1
[:e, :a, :b, :f, :c, :d].map(&my_hash) # hash is now mappable
# => [5, 1, 2, 6, 3, 4]
~~~
This seems so straight forward I believe it should be part of the language itself with the `.to_proc` method call.
--
https://bugs.ruby-lang.org/