sonic-pi

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

C++

Code. Music. Live.

Hash#compact

Returns a hash with non +nil+ values.

  hash = { a: true, b: false, c: nil}
  hash.compact # => { a: true, b: false}
  hash # => { a: true, b: false, c: nil}
  { c: nil }.compact # => {}

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/compact.rb

Contribute

# Make a new branch

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

# Commit to git

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

# 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-compact-for-pr

hub pull-request

# Celebrate!