sonic-pi

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

C++

Code. Music. Live.

Hash#deep_merge

Returns a new hash with +self+ and +other_hash+ merged recursively.

  h1 = { x: { y: [4, 5, 6] }, z: [7, 8, 9] }
  h2 = { x: { y: [7, 8, 9] }, z: 'xyz' }

  h1.deep_merge(h2) # => {x: {y: [7, 8, 9]}, z: "xyz"}
  h2.deep_merge(h1) # => {x: {y: [4, 5, 6]}, z: [7, 8, 9]}
  h1.deep_merge(h2) { |key, old, new| Array.wrap(old) + Array.wrap(new) }
  # => {:x=>{:y=>[4, 5, 6, 7, 8, 9]}, :z=>[7, 8, 9, "xyz"]}

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/hash/deep_merge.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Hash-deep_merge-for-pr

# Commit to git

git add app/server/ruby/vendor/activesupport-7.0.6/lib/active_support/core_ext/hash/deep_merge.rbgit commit -m "better docs for Hash#deep_merge"

# 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_merge-for-pr

hub pull-request

# Celebrate!