Swift Interview Questions For Freshers

Explain the concept of type casting and type checking in Swift.

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How would you declare a variable in Swift?

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Explain the concept of optionals in Swift.

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What is type inference in Swift?

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What is a tuple in Swift?

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How would you convert a string to an integer in Swift?

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What is a guard statement in Swift and how is it used?

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Explain the concept of closures in Swift.

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What is the difference between a class and a struct in Swift?

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What is a computed property in Swift?

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What is the purpose of the 'self' keyword in Swift?

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What is the use of the 'enum' keyword in Swift?

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What is the purpose of the 'optional chaining' operator in Swift?

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What is the difference between '==' and '===' in Swift?

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What is the Swift 'if let' statement used for?

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What is the difference between a constant and a variable in Swift?

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What is the use of 'try', 'catch', and 'throw' in Swift?

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What is the purpose of the 'as' keyword in Swift?

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What are protocols in Swift and how are they used?

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How would you create an empty array of a specific type in Swift?

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Swift Intermediate Interview Questions

What is the use of the 'guard let' statement in Swift?

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What is the purpose of the 'is' keyword in Swift?

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What is the use of the 'as?' operator in Swift?

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What are default parameters in Swift and how are they used?

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Explain the concept of access control in Swift.

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What is the purpose of the 'associatedtype' keyword in Swift?

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What is the use of the 'fallthrough' keyword in Swift?

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What is the purpose of the 'prefix' keyword in Swift?

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What are the properties of optionals in Swift?

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What is the difference between optional chaining and forced unwrapping in Swift?

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Explain the concept of lazy collections in Swift.

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What is the purpose of the 'where' clause in Swift?

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Explain the concept of lazy properties in Swift.

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Explain the concept of optionals unwrapping in Swift.

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What is the purpose of the 'defer' keyword in Swift?

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What is the Swift 'switch' statement used for?

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What is the purpose of the 'inout' parameter in Swift?

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Explain the concept of memory management in Swift.

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What is the difference between an 'if' statement and 'guard' statement in Swift?

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What is the purpose of the 'where' keyword in Swift?

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Explain the concept of generics in Swift.

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What are closures with capture lists in Swift?

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What is the purpose of the 'nonmutating' keyword in Swift?

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Swift Interview Questions For Experienced

What are property observers in Swift and how are they used?

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What is the use of the 'throw' statement in Swift?

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Explain the concept of key-value observing in Swift.

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What is the purpose of the 'override' keyword in Swift?

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Explain the concept of protocol extensions in Swift.

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What is the use of the 'guard case' statement in Swift?

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What is the purpose of the 'infix' keyword in Swift?

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Explain the concept of associated types in Swift.

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What is the difference between 'struct' and 'class' in terms of memory management in Swift?

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What is the use of the 'throws' keyword in Swift?

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What is the purpose of the 'mutating' keyword in Swift?

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Explain the concept of subscripts in Swift.

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What is the difference between a global and a local scope in Swift?

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What is the purpose of the 'final' keyword in Swift?

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What are the benefits of using 'defer' in Swift?

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Explain the concept of type erasure in Swift.

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What is the use of the 'unowned' keyword in Swift?

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What is the purpose of the 'static' keyword in Swift?

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