BLACK FRIDAY SALE: Save big on all my Swift books and bundles! >>

Handling missing data

Question 1/6: Which of these make good candidates for optionals?

Hint: Click to show.

  • Option 1: The capital city of a country your user just typed in.
  • Option 2: The number of pages in a book.

Return to Review Menu

BUY OUR BOOKS
Buy Pro Swift Buy Pro SwiftUI Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code
 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.