Issue #6414 has been updated by shyouhei (Shyouhei Urabe).

Status changed from Assigned to Feedback
Assignee deleted (matz (Yukihiro Matsumoto))

This request won't progress without a working proof-of-concept.  Feel free to send us your pull request. https://github.com/ruby/ruby
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Feature #6414: Destructuring Assignment 
https://bugs.ruby-lang.org/issues/6414#change-28377

Author: edtsech (Edward Tsech)
Status: Feedback
Priority: Normal
Assignee: 
Category: core
Target version: 2.0.0


I mean:

john = {name: "John", last: "Smith"}
{name, last} = john # extract value by key from the hash and set to local variable with same name
name # => "John"
last # -> "Smith"

Useful for ex. for  "options" hashes:
def select(options={})
  {only, except} = options
  ...
end

As extra part of this feature can be hash constructing in this way:

name = "John"
last    = "Smith"
find({name, last}) # equals to => find({name: "John", last: "Smith"})

I think both really nice to have in Ruby.
Thanks.


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