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

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

Apple App Development with Swift Certified User Sample Questions:

Question 1

Drag the views on the left to the correct locations m the code on the fight to match the shown canvas.
You may use each View once, more than once, or not at all.

Question 2

Review the code.
struct ContentView: View {
let fruits = [ " Apple " , " Banana " , " Kiwi " ]
var body: some View {
List(fruits, id: \.self) { fruit in
Text(fruit)
.font(.headline)
.padding()
}
}
}
Which of the following statements is true about the code?

A. The id: \.self in the List view is not necessary and may be omitted.
B. The id: \.self in the List view should be rewritten as id: /self
C. KeyPaths are used here to extract the font and padding properties dynamically.
D. The List view is using the fruits array to display the contents as individual rows.

Question 3

Why does the initializer for the following struct need the keyword self?

A. self is needed to distinguish between the property and the parameter with the same name.
B. self is used to indicate to the reader that the parameter is being referenced.
C. self is always needed when you are setting properties in an initializer.
D. self is only needed when the property does not have a default value.

Question 4

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

Question 5

Review the code.

You need to add the word " Great! " to the Capsule shape.
Complete the code by typing in the boxes.

Solutions: