Check string for nil & empty

Question

Is there a way to check strings for nil and \"\" in Swift? In Rails, I can use blank() to check.

I currently have this, but i

Answer 1

This is a general solution for all types that conform to the Collection protocol, which includes String:

extension Optional where Wrapped: Collection {
    var isNilOrEmpty: Bool {
        self?.isEmpty ?? true
    }
}