Debugging an app written in Swift can be done using Xcode’s debugger. This provides features such as breakpoints, watchpoints, and logging.
For example, if you wanted to debug a line of code that was causing an issue, you could set a breakpoint on that line. This will pause the execution of the app and allow you to examine the current state of the app. You can then use the debugger to step through the code and examine variables to determine what is causing the issue.
You can also use the debugger to log messages to the console, which can help to identify issues that are not easily visible in the code. This can be done by using the print() function or the Xcode logging system.
Finally, you can use watchpoints to keep track of changes to variables over time. This can help to identify where a bug is occurring and what is causing it.