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Apple App-Development-with-Swift-Certified-User Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| App Logic and Data Handling | - Data management in apps
|
| User Interface Development | - Building iOS interfaces
|
| Introduction to App Development with Swift | - Swift programming fundamentals
|
| App Lifecycle and Deployment Concepts | - Understanding app structure
|
Apple App Development with Swift Certified User Sample Questions:
1. Which property wrapper allows you to read data from the system or device settings?
A) @StateObject
B) @Binding
C) @Environment
D) @State
2. Review the code snippet.
What value does the code output?
3. 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 should be rewritten as id: /self
B) The id: \.self in the List view is not necessary and may be omitted.
C) The List view is using the fruits array to display the contents as individual rows.
D) KeyPaths are used here to extract the font and padding properties dynamically.
4. Why does the initializer for the following struct need the keyword self?
A) self is used to indicate to the reader that the parameter is being referenced.
B) self is only needed when the property does not have a default value.
C) self is needed to distinguish between the property and the parameter with the same name.
D) self is always needed when you are setting properties in an initializer.
5. Review the code snippet.
What is the output from each print statement?
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: Only visible for members | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: Only visible for members |
