sonic-pi

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

C++

Code. Music. Live.

Hash#transform_keys

Returns a new hash with all keys converted using the block operation.

 hash = { name: 'Rob', age: '28' }

 hash.transform_keys{ |key| key.to_s.upcase }
 # => {"NAME"=>"Rob", "AGE"=>"28"}

Source | Google | Stack overflow

Edit

git clone [email protected]:sonic-pi-net/sonic-pi.git

cd sonic-pi

open app/server/ruby/vendor/activesupport/lib/active_support/core_ext/hash/keys.rb

Contribute

# Make a new branch

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

# Commit to git

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

# 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-transform_keys-for-pr

hub pull-request

# Celebrate!