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Swift Programming Quiz for Begineers

What does `??` mean in Swift?

It provides a default value for an optional.

It unwraps an optional.

It is used for conditional checks.

It checks for nil.

Which keyword is used to declare a constant in Swift?

var

static

const

let

What does the `guard` statement do in Swift?

Ensures a condition is true or exits the current scope.

Iterates over a sequence.

Ensures a condition is false.

Declares a loop.

How do you declare an optional in Swift?

var name: Optional(String)

var name: String = nil

var name: String?

var name: String!

What is Swift primarily used for?

iOS and macOS Development

Android Development

Game Development

Web Development

Which statement is used for error handling in Swift?

try-catch

throw

throw-catch

try

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

print()

println()

console.log()

printf()

How do you declare a function in Swift?

def functionName() {}

function functionName() {}

fn functionName() {}

func functionName() {}

What is a tuple in Swift?

A type of optional

A fixed-size array

A dictionary

A collection of multiple values grouped together

What is the file extension for Swift files?

swft

swift

sft

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