[Solved] Identify the error in this code snippet:let predicate = NSPredicate(format: "age > %@", 18) let filtered = people.filter { predicate.evaluate(with: $0) } | iOS Swift

iOS Swift - Local Data Persistence

Identify the error in this code snippet:

let predicate = NSPredicate(format: "age > %@", 18)
let filtered = people.filter { predicate.evaluate(with: $0) }

ANSPredicate format string is incorrect

BMissing closing parenthesis in filter

CUsing %@ with an Int value causes a runtime error

Devaluate(with:) cannot be used in filter

Step-by-Step Solution

Solution:

Step 1: Check NSPredicate format and arguments
Using %@ expects an object, but 18 is an Int literal, causing a type mismatch.
Step 2: Understand correct usage
Use %d or cast 18 to NSNumber to avoid error.
Final Answer:
Using %@ with an Int value causes a runtime error -> Option C
Quick Check:
Use correct format specifier for Int [OK]

Quick Trick: Use %d for Int in NSPredicate format strings [OK]

Common Mistakes:

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