Swift Cards -> Optionals

#09. Swift 'Optionals' Cards are available for you!

Swift "Optionals" Cards - Card one

A4 / color version

A4 / black and white version

Hello iOS Devs!
I designed a set of cards about "Optionals" in Swift.
Three cards to print, cut, and put right next to your keyboard.

In them, you'll find this info:

-Optional definition
-Optional declared in Swift Source code
-Swift Standard Library types that are defined as Optionals
-nil
-If Statements and Forced Unwrapping
-Optional Binding
-Implicitly Unwrapped Optionals
-Optional Chaining
-Using the Nil-Coalescing Operator
-Unconditional Unwrapping

Steps:

1. Download the PDF (two pages: black/white and color).

2. Print on both sides (two pages: black/white and color).

3. Cut the cards following the guides.

4. Ready to use the "Swift Optionals Cards"!

The cards in action (example)