[Solved] Given this code snippet, what will be displayed? struct ContentView: View { let numbers = [1, 2, 3] var body: some View { List(numbers, id: \.self) { num in Text("Number: \(num * 2)") } } } | iOS Swift

iOS Swift - SwiftUI Layout

Given this code snippet, what will be displayed?

struct ContentView: View {
  let numbers = [1, 2, 3]
  var body: some View {
    List(numbers, id: \.self) { num in
      Text("Number: \(num * 2)")
    }
  }
}

ANumber: 1, Number: 4, Number: 9

BNumber: 1, Number: 2, Number: 3

CNumber: 2, Number: 4, Number: 6

DNumber: 0, Number: 1, Number: 2

Step-by-Step Solution

Solution:

Step 1: Understand the data and transformation
The array contains 1, 2, 3. Each number is multiplied by 2 in the Text view.
Step 2: Calculate displayed values
1*2=2, 2*2=4, 3*2=6, so the list shows "Number: 2", "Number: 4", "Number: 6".
Final Answer:
Number: 2, Number: 4, Number: 6 -> Option C
Quick Check:
Multiply each number by 2 = A [OK]

Quick Trick: Check how data transforms inside Text closure [OK]

Common Mistakes:

Ignoring the multiplication inside the string
Confusing array values with displayed text
Assuming original numbers are shown

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More iOS Swift Quizzes

Given this code snippet, what will be displayed?

Step 1: Understand the data and transformation

Step 2: Calculate displayed values

Final Answer:

Quick Check:

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