Debugging Swift code can involve a lot of print statements, logging, and guesswork, especially when you’re tracking down issues that only happen intermittently. Thankfully, Swift gives us a set of powerful compiler-magic identifiers that make it easy to know where something is happening in your code.

Three of the most useful are:

• #file

• #function

• #line

Here's how you can use them within a function:

Hopefully you find this Swift tip helpful, I use this little snippet all the time.