In which data types can you define methods?

A Switch statement cannot handle String.

GCD conforms with the ____ order.

func addStudent(_ student: Student) { concurrentStudentQueue.async(flags: .barrier) { self._students.append(student) DispatchQueue.main.async { // self.postContentAddedNotification() } } } The code will ensure that the submitted DispatchWorkItem will be executed in parallel with any other DispatchWorkItem in the same queue.

GCD can dispatch a task

NSOperationQueue conforms to

What specifies custom infix operator?

What are the available arithmetic overflow operators in Swift?

Which of the following statements is true regarding Swift closures and functions?

What is a trailing closure?

How could the following closure be rewritten to use shorthand arguments? s2 } ) >