Top 50 swift Interview Questions
The most frequently asked swift questions across all roles and companies, ranked by real interview frequency. Updated daily.
Detect directed retain cycles in asynchronous object graphs and return back-edges that should become weak references.
CostarFilter Credit Karma app suggestions by prefix while preserving input order using linear string matching.
Credit KarmaExplain Swift structs vs classes, focusing on value vs reference semantics, memory behavior, and when each is the better design choice.
Scalable Capital
Samsung AdsCCybage SoftwareExplain how ARC manages object lifetimes in iOS and how weak or unowned references prevent retain cycles.
Telus Digital
Carfax
Avenue CodeAssesses iOS and Swift/SwiftUI fundamentals and understanding of memory management.
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Tests ownership and influence without authority while leading an ambiguous mobile architecture change such as dependency injection in Swift.
CostarAssesses your system design skills for building a notification service with reliability and scalability.
BoxEvaluates your practical mobile engineering depth and technology familiarity.
Act Digital