[Solved] What does an NSPredicate do in Swift when working with arrays? — Ans: Filters the array to include only items matching a condition | iOS Swift

iOS Swift - Local Data Persistence

What does an NSPredicate do in Swift when working with arrays?

ARemoves duplicates from the array

BSorts the array in ascending or descending order

CAdds new items to the array

DFilters the array to include only items matching a condition

Step-by-Step Solution

Solution:

Step 1: Understand the role of NSPredicate
An NSPredicate is used to specify conditions to filter collections like arrays.
Step 2: Differentiate filtering from sorting
Filtering means selecting items that meet a condition, while sorting changes order.
Final Answer:
Filters the array to include only items matching a condition -> Option D
Quick Check:
Predicate = Filter [OK]

Quick Trick: Predicate means filter, not sort or add [OK]

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What does an NSPredicate do in Swift when working with arrays?