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Swift interview questions and answers for beginners to advanced candidates.
Total questions
108+
Theory · MCQs · coding
Sets & tracks
10+
Structured for revision
Topics covered
11+
In-depth roadmap
11+ curated interview questions.
11+ curated interview questions.
11+ curated interview questions.
10+ curated interview questions.
11+ curated interview questions.
11+ curated interview questions.
10+ curated interview questions.
12+ curated interview questions.
11+ curated interview questions.
10+ curated interview questions.
Mixed · 8+ questions
Mixed · 13+ questions
Mixed · 11+ questions
Mixed · 9+ questions
Mixed · 10+ questions
Mixed · 6+ questions
Mixed · 12+ questions
Mixed · 6+ questions
Mixed · 18+ questions
Mixed · 4+ questions
Mixed · 11+ questions
What is the difference between `let` and `var` in Swift?
What does the `?` after a type name signify in Swift, e.g., `Int?`?
Which statement is true about `struct` vs `class` in Swift?
What is the purpose of a `guard` statement in Swift?
Which of these best describes a closure in Swift?
What does Swift's type inference mean?
Which feature allows you to call a method or access property on an optional that might be nil, returning nil if the optional is nil?
What does the `defer` statement do in Swift?
Explain how error handling works in Swift with `throw`, `try`, `catch` and how you would define a custom error.
Describe value semantics vs reference semantics in Swift and why this distinction matters when choosing `struct` vs `class`.
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