Should blank values be considered as "set"?

[laserlemon]

If the value for a given ENV key is set to "", should that value be considered as being set?

ENV["foo"] = ""

Figaro.env.foo? # => true or false
Figaro.env.foo! # => "", nil or Figaro::MissingKey
Figaro.env.foo # => "" or nil

The current behavior is (and always has been) that a blank string is a valid value and counts as having been intentionally set to that value.

[sheerun]

I think there's no single use case when empty string is useful input.

I'd go with pragmatic approach and treat ? methods just as blank? in rails.

[glennfu]

To keep my code clean I'm wanting to use Figaro.env.feature_enabled? to decide whether or not a feature should be used in a particular environment. That seems to be the nicest way to use it. However if it's set to "true" somewhere, and I want to quickly override it by doing heroku config:set feature_enabled=#### I can't find anything to set it to to make that flip to false and quickly disable the feature. This would at least give me an option to do that.