i18n

https://github.com/svenfuchs/i18n

Ruby

Internationalization (i18n) library for Ruby

I18n::Base#locale_available?

Returns true when the passed locale, which can be either a String or a
Symbol, is in the list of available locales. Returns false otherwise.

Source | Google | Stack overflow

Edit

git clone [email protected]:svenfuchs/i18n.git
cd i18n
open lib/i18n.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-I18n--Base-locale_available--for-pr

# Commit to git
git add lib/i18n.rbgit commit -m "better docs for I18n::Base#locale_available?"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-I18n--Base-locale_available--for-pr
hub pull-request

# Celebrate!