[ruby-core:55343] [ruby-trunk - Feature #8499] Importing Hash#slice, Hash#slice!, Hash#except, and Hash#except! from ActiveSupport

["rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@gmail.com>]

Issue #8499 has been updated by rosenfeld (Rodrigo Rosenfeld Rosas).


+1
----------------------------------------
Feature #8499: Importing Hash#slice, Hash#slice!, Hash#except, and Hash#except! from ActiveSupport
https://bugs.ruby-lang.org/issues/8499#change-39750

Author: mrkn (Kenta Murata)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: current: 2.1.0


=begin RD
According to my experiences, the following two idioms often appeare in application codes.

(1) (({hash = other_hash.select { |k, | [:key1, :key2, :key3].include? k }}))
(2) (({hash = other_hash.reject { |k, | [:key1, :key2, :key3].include? k }}))

On Rails, they can be written in the following forms by using ActiveSupport's features.

(1) (({hash = other_hash.slice(:key1, :key2, :key3)}))
(2) (({hash = other_hash.except(:key1, :key2, :key3)}))

I think the latter forms are shorter and more readable than the former ones.

So I propose to import the following methods from ActiveSupport:

* (({Hash#slice}))
* (({Hash#slice!}))
* (({Hash#except}))
* (({Hash#except!}))
=end


-- 
http://bugs.ruby-lang.org/