You want to display a list of user names with unique IDs. Which code correctly uses List with a custom struct User that conforms to Identifiable?

hard📝 Conceptual Q8 of 15

iOS Swift - SwiftUI Layout

You want to display a list of user names with unique IDs. Which code correctly uses List with a custom struct User that conforms to Identifiable?

AList(users, id: name) { user in Text(user.name) }

BList { ForEach(users) { Text(user.name) } }

CList(users) { Text(user.name) }

DList(users) { user in Text(user.name) }

Step-by-Step Solution

Solution:

Step 1: Recall Identifiable protocol usage
If User conforms to Identifiable, List can use users array directly without id parameter.
Step 2: Check options
List(users) { user in Text(user.name) } correctly uses List(users) with closure. List(users, id: name) { user in Text(user.name) } has syntax error (invalid id syntax). List(users) { Text(user.name) } has syntax error (missing closure parameter). List { ForEach(users) { Text(user.name) } } has syntax error (missing ForEach closure parameter).
Final Answer:
List(users) { user in Text(user.name) } -> Option D
Quick Check:
Identifiable array can be passed directly to List [OK]

Quick Trick: Use List(array) directly if elements are Identifiable [OK]

Common Mistakes:

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