From: "mame (Yusuke Endoh)" <mame@...>
Date: 2012-11-20T21:10:41+09:00
Subject: [ruby-core:49687] [ruby-trunk - Feature #4830] Provide Default Variables for Array#each and other iterators


Issue #4830 has been updated by mame (Yusuke Endoh).

Target version set to next minor


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Feature #4830: Provide Default Variables for Array#each and other iterators
https://bugs.ruby-lang.org/issues/4830#change-33208

Author: lazaridis.com (Lazaridis Ilias)
Status: Assigned
Priority: Low
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: next minor


for arrays: use "item" by default
for hashes: use "key" and "value" by default

names = ["Jane", "Michele", "Isabella"]
names.each { |name| print name, "\n" } 
names.each { print item, "\n" } 

contact = {name:"Jane", phone:"1234567"}
contact.each { |key, value| print key, ": ", value, "\n"}
contact.each { print key, ": ", value, "\n"}

-

The benefits are:

* more compact code (without loosing clarity of the code).
* no repetitions ("names, name, name") in a one-liner with {} block

This extension does not break any existent behaviour.


-- 
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