sonic-pi

https://github.com/sonic-pi-net/sonic-pi

C++

Code. Music. Live.

Hash#deep_dup

Returns a deep copy of hash.

  hash = { a: { b: 'b' } }
  dup  = hash.deep_dup
  dup[:a][:c] = 'c'

  hash[:a][:c] # => nil
  dup[:a][:c]  # => "c"

Source | Google | Stack overflow

Edit

git clone [email protected]:sonic-pi-net/sonic-pi.git
cd sonic-pi
open app/server/ruby/vendor/activesupport-7.0.6/lib/active_support/core_ext/object/deep_dup.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Hash-deep_dup-for-pr

# Commit to git
git add app/server/ruby/vendor/activesupport-7.0.6/lib/active_support/core_ext/object/deep_dup.rbgit commit -m "better docs for Hash#deep_dup"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Hash-deep_dup-for-pr
hub pull-request

# Celebrate!