Apple App Development with Swift Certified User - App-Development-with-Swift-Certified-User certification

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

Apple App Development with Swift Certified User Sample Questions:

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

2. Review the code snippet and then predict the output.

A) Total count: 10
B) Total count: 20
C) Total count: 9
D) Total count: 11

3. Review the code.
Note: You might need to scroll to see the entire block of code.

A breakpoint is set on line 3. When the application is run. it will stop at line 3. You need to debug the code.
Drag each debugging control from the left to the correct instruction on the right. You will receive partial credit for each correct answer

4. Review the code snippet.

Which statement completes the code snippet so that:
* The lastReleaseDate remains the same when nextApplePhone.releaseDate is nil.
* The lastReleaseDate updates to the nextApplePhone.releaseDate when nextApplePhone.releaseDate is NOT nil.

A) lastReleaseDate : nextApplcPhone.rcleaseDate!
B) nextApplePhone.releaseDate! : lastReleaseDate
C) nextApplePhone.releaseDate : lastReleaseDate
D) lastReleaseDate : nextApplePhone.releaseDate

5. Select the area in Xcode that allows you to display the Preview Canvas.

Solutions: