String#present/blank

This gem provides String#present and String#blank.

'abc' + 'efg' #=> 'abcefg'
'abc' + 'efg' if false #=> nil
'abc' + ('efg' if false) #=> TypeError: no implicit conversion of nil into String
'abc' + if false then 'efg' else '' end #=> 'abc'

'abc' + 'efg'.blank(if: true) #=> 'abc'
'abc' + 'efg'.present(unless: true) #=> 'abc'

%div= link_to('abc', abc_path, class: 'abc'.present(if: abc?))

Add this line to your application's Gemfile:

gem 'string-present-blank'

And then execute:

$ bundle

Or install it yourself as:

$ gem install string-present-blank

1. Fork it ( https://github.com/tachiba/string-present-blank/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request