Does “let _ = …” (let underscore equal) have any use in Swift?

Question

Does using let _ = ... have any purpose at all?

I\'ve seen question and answers for What's the _ underscore representative of in Swift References? a

Answer 1

You can user also @discardableResult in your own functions if sometimes you don't need the result.

@discardableResult    
func someFunction() -> String {

}

someFunction() // Xcode will not complain in this case