#if swiftsyntax do?
Suggested approach: The syntax was added in Swift 2.2 to support compile-time version checking, meaning that you can mix two different Swift versions in one file without errors because only one will be used at a time.
Make sure and give an example, such as Swift 5.4 supporting colors such as
.red.opacity(0.5) whereas older versions need to use
Estimated difficulty: Easy
#errorcompiler directive do?
Link copied to your pasteboard.