[ruby-core:43439] [ruby-trunk - Feature #4475][Assigned] default variable name for parameter

[nahi <nakahiro@gmail.com>]

Issue #4475 has been updated by nahi.

Description updated
Category set to core
Status changed from Open to Assigned
Assignee set to matz


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Feature #4475: default variable name for parameter
https://bugs.ruby-lang.org/issues/4475#change-24906

Author: jordi
Status: Assigned
Priority: Normal
Assignee: matz
Category: core
Target version: 


=begin

There is a very common pattern in Ruby:

 object.method do |variable_name|
  variable_name doing something  
 end

 Many times in fact the name of the object is so self explanatory that we don't care about the name of the variable of the block. It is common to see things like :

 @my_sons.each { |s| s.sell_to_someone }

or

 Account.all.each { |a|  my_account << a.money }


 People tend to choose s or a because we have the class or the object name just there to remind you about the context. 


I would like to know if can be a good idea to have a default name for that parameter. I think it is Groovy that does something like:

  Account.all.each { my_account << it.money } 

Where it is automagically filled and it doesn't need to be declared.  

I think it is as readable or more (for newbies who don't know what is ||) and we save some typing :)


=end



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