sonic-pi

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

C++

Code. Music. Live.

Enumerable#index_by

Convert an enumerable to a hash.

  people.index_by(&:login)
    => { "nextangle" => <Person ...>, "chade-" => <Person ...>, ...}
  people.index_by { |person| "#{person.first_name} #{person.last_name}" }
    => { "Chade- Fowlersburg-e" => <Person ...>, "David Heinemeier Hansson" => <Person ...>, ...}

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/enumerable.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Enumerable-index_by-for-pr

# Commit to git

git add app/server/ruby/vendor/activesupport-7.0.6/lib/active_support/core_ext/enumerable.rbgit commit -m "better docs for Enumerable#index_by"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Enumerable-index_by-for-pr

hub pull-request

# Celebrate!