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Swift Programming Quiz for Begineers

How do you declare an optional in Swift?

var name: String!

var name: Optional(String)

var name: String = nil

var name: String?

Which statement is used for error handling in Swift?

throw

try

throw-catch

try-catch

How do you declare a function in Swift?

def functionName() {}

function functionName() {}

fn functionName() {}

func functionName() {}

What is the file extension for Swift files?

swift

swft

sft

What does the `guard` statement do in Swift?

Declares a loop.

Iterates over a sequence.

Ensures a condition is false.

Ensures a condition is true or exits the current scope.

Which function is used to print to the console in Swift?

printf()

print()

println()

console.log()

What does `??` mean in Swift?

It checks for nil.

It unwraps an optional.

It provides a default value for an optional.

It is used for conditional checks.

What is Swift primarily used for?

iOS and macOS Development

Game Development

Web Development

Android Development

Which keyword is used to declare a constant in Swift?

let

static

const

var

What is a tuple in Swift?

A type of optional

A collection of multiple values grouped together

A dictionary

A fixed-size array

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