Like ActiveSupport's presence, but for Object#null?
For example, this is useful when setting defaults via or: object.exists || other_object
Setup
Add to your Gemfile:
gem 'exists'
Usage
class NullObject
def null?
true
end
end
nil.exists #=> nil
NullObject.new.exists #=> nil
"some object".exists #=> "some object"
MIT License
Copyright (C) 2015 Jan Lelis https://janlelis.com. Released under the MIT license.