iOS Swift - Lists and Data Display
Given this code, what will be the output?
let numbers = [10, 20, 30]
List {
ForEach(numbers, id: \.self) { num in
Text(\"Number: \(num)\")
}
}
Given this code, what will be the output? let numbers = [10, 20, 30] List { ForEach(numbers, id: \.self) { num in Text(\"Number: \(num)\") } }
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze the ForEach closure
Each number is displayed with prefix "Number: " in a Text view.Step 2: Confirm output
List shows three rows with "Number: 10", "Number: 20", "Number: 30" respectively.Final Answer:
List rows: Number: 10, Number: 20, Number: 30 -> Option BQuick Check:
ForEach text formatting = List rows: Number: 10, Number: 20, Number: 30 [OK]
Quick Trick: Text interpolation shows each item with prefix [OK]
Common Mistakes:
- Ignoring prefix in output
- Repeating first item
- Expecting empty list
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