Adding methods in Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a method named greet inside the struct.

Swift

struct Person {
    func [1]() {
        print("Hello!")
    }
}

Drag options to blanks, or click blank then click option'

Awelcome

Bgreet

Chello

DsayHello

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different method name than 'greet'.

The method name should be greet as required.

2fill in blank

medium

Complete the code to call the greet method on the person instance.

Swift

let person = Person()
person.[1]()

Drag options to blanks, or click blank then click option'

AsayHello

Bwelcome

Chello

Dgreet

Attempts:

3 left

💡 Hint

Common Mistakes

Calling a method name that does not exist.

To call the method defined earlier, use greet().

3fill in blank

hard

Fix the error by completing the method signature to accept a name parameter of type String.

Swift

struct Person {
    func greet([1] name: String) {
        print("Hello, \(name)!")
    }
}

Drag options to blanks, or click blank then click option'

Afor

Bto

Cwith

Dat

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect external parameter names like 'with' or 'to'.

The correct external parameter name is for to read naturally as greet(for name: String).

4fill in blank

hard

Fill both blanks to define a method that returns a greeting string and call it.

Swift

struct Person {
    func greet() -> [1] {
        return "Hello!"
    }
}

let person = Person()
let message = person.[2]()

Drag options to blanks, or click blank then click option'

AString

Bgreet

CInt

DsayHello

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong return type or calling a method that does not exist.

The method returns a String and is called greet().

5fill in blank

hard

Fill all three blanks to define a method with a parameter and call it with an argument.

Swift

struct Person {
    func greet([1] name: [2]) -> String {
        return "Hello, \(name)!"
    }
}

let person = Person()
let message = person.greet([3]: "Alice")

Drag options to blanks, or click blank then click option'

Afor

BString

C"Alice"

Dto

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong parameter names, types, or argument values.

The method uses external parameter name for, parameter type String, and is called with the string "Alice".