Apple App-Development-with-Swift-Certified-User valid exam dumps : App Development with Swift Certified User Exam

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Apple App-Development-with-Swift-Certified-User Exam Syllabus Topics:

Apple App Development with Swift Certified User Sample Questions:

1. Which two statements about building an app are true? (Choose 2.)

A) You can run your app in the simulator with Generic iOS Device chosen.
B) Your phone must always be physically attached to your Mac to run your apps from Xcode on it.
C) You need a paid Apple Developer account in order to run your app on your phone.
D) You can run an app on your phone and get debug information in Xcode.
E) You can preview a View in the Canvas without running your app.

2. You have created a view which includes some formatted text:

You decide to extract this formatted text into a subview so that you can reuse the formatting for other texts.
You highlight the Text and choose Extract subview.
You refactor ExtractedView to BigGreenTextView.
You add the line let text: String to the extracted view above the body.
You replace " That ' s all folks " with a reference to text
How should you call this extracted View from the original View?

A) BigGreenTextView(text)
B) BigGreenTextView( " That ' s all folks " )
C) BigGreenTextView(text: " That ' s all folks " )
D) BigGreenTextView(text: text)

3. What is the code snippet an example of?

A) Force unwrapping
B) Optional chaining
C) Optional binding
D) Implicitly unwrapped optional

4. In SwiftUI, how can you extract a subview from a main view to make the code more modular?

A) Declare the subview as a variable inside the main view and call it directly.
B) Create a new SwiftUI view struct and call it in the main view.
C) Use @State to manage subview content and use a binding to create a two-way connection.
D) Add the subview's code directly into the main view's body.

5. Review the code snippet.

What will print after the final line of code is executed?

Solutions: