carrierwave

https://github.com/carrierwaveuploader/carrierwave

Ruby

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

Mail::IndifferentHash#key?

Checks the hash for a key matching the argument passed in:

  hash = HashWithIndifferentAccess.new
  hash["key"] = "value"
  hash.key? :key  # => true
  hash.key? "key" # => true

Source | Google | Stack overflow

Edit

git clone [email protected]:carrierwaveuploader/carrierwave.git

cd carrierwave

open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Mail--IndifferentHash-key--for-pr

# Commit to git

git add git commit -m "better docs for Mail::IndifferentHash#key?"

# Open pull request

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

hub fork

git push <your name> -your-name--update-docs-Mail--IndifferentHash-key--for-pr

hub pull-request

# Celebrate!