sonic-pi

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

C++

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Array#in_groups

Splits or iterates over the array in +number+ of groups, padding any
remaining slots with +fill_with+ unless it is +false+.

  %w(1 2 3 4 5 6 7 8 9 10).in_groups(3) {|group| p group}
  ["1", "2", "3", "4"]
  ["5", "6", "7", nil]
  ["8", "9", "10", nil]

  %w(1 2 3 4 5 6 7 8 9 10).in_groups(3, ' ') {|group| p group}
  ["1", "2", "3", "4"]
  ["5", "6", "7", " "]
  ["8", "9", "10", " "]

  %w(1 2 3 4 5 6 7).in_groups(3, false) {|group| p group}
  ["1", "2", "3"]
  ["4", "5"]
  ["6", "7"]

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/array/grouping.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Array-in_groups-for-pr

# Commit to git
git add app/server/ruby/vendor/activesupport-7.0.6/lib/active_support/core_ext/array/grouping.rbgit commit -m "better docs for Array#in_groups"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Array-in_groups-for-pr
hub pull-request

# Celebrate!