[Solved] What is the issue with this SwiftUI code snippet? let scores = [100, 200, 300] List { ForEach(scores) { score in Text("Score: \(score)") } } | iOS Swift

iOS Swift - Lists and Data Display

What is the issue with this SwiftUI code snippet?

let scores = [100, 200, 300]

List {
  ForEach(scores) { score in
    Text("Score: \(score)")
  }
}

AList cannot contain ForEach directly.

BThe Text view syntax is incorrect.

CThe array elements are Ints and ForEach requires an id or Identifiable conformance.

DThe scores array should be declared as a @State variable.

Step-by-Step Solution

Solution:

Step 1: Check ForEach requirements
ForEach requires either data conforming to Identifiable or an explicit id parameter.
Step 2: Analyze the data type
Here, scores is an array of Ints, which do not conform to Identifiable.
Step 3: Identify the error
Missing id: \.self causes a compile-time error.
Final Answer:
The array elements are Ints and ForEach requires an id or Identifiable conformance. -> Option C
Quick Check:
ForEach over Int array needs id: \.self [OK]

Quick Trick: ForEach over Int array needs id: \.self [OK]

Common Mistakes:

Master "Lists and Data Display" in iOS Swift

9 interactive learning modes - each teaches the same concept differently

More iOS Swift Quizzes

What is the issue with this SwiftUI code snippet?