sonic-pi

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

C++

Code. Music. Live.

Hamster::List#group_by

Passes each item to the block, and gathers them into a {Hash} where the
keys are return values from the block, and the values are `List`s of items
for which the block returned that value.

Source | Google | Stack overflow

Edit

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

cd sonic-pi

open app/server/ruby/vendor/hamster-3.0.0/lib/hamster/list.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Hamster--List-group_by-for-pr

# Commit to git

git add app/server/ruby/vendor/hamster-3.0.0/lib/hamster/list.rbgit commit -m "better docs for Hamster::List#group_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-Hamster--List-group_by-for-pr

hub pull-request

# Celebrate!