Modularization in iOS Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a Swift module named "Utilities".

iOS Swift

public struct [1] {
    public static func greet() -> String {
        return "Hello from Utilities!"
    }
}

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

AApp

BMain

CUtilities

DCore

Attempts:

3 left

💡 Hint

Common Mistakes

Using unrelated names like Main or Core.

Leaving the struct unnamed.

The module name should be Utilities to match the struct name and purpose.

2fill in blank

medium

Complete the code to import the module named "Networking" in a Swift file.

iOS Swift

import [1]

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

AFoundation

BUIKit

CCoreData

DNetworking

Attempts:

3 left

💡 Hint

Common Mistakes

Importing UIKit instead of Networking.

Forgetting to import the module.

To use code from the Networking module, you must import it explicitly.

3fill in blank

hard

Fix the error in the code by completing the access control keyword to expose the function outside the module.

iOS Swift

struct Helper {
    [1] func performTask() {
        print("Task performed")
    }
}

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

Apublic

Bfileprivate

Cprivate

Dinternal

Attempts:

3 left

💡 Hint

Common Mistakes

Using private or fileprivate which hide the function.

Assuming internal allows external access.

The public keyword makes the function accessible outside the module.

4fill in blank

hard

Fill both blanks to define a protocol and make a class conform to it in Swift.

iOS Swift

protocol [1] {
    func execute()
}

class Task: [2] {
    func execute() {
        print("Executing task")
    }
}

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

ARunnable

BTask

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name as the protocol name.

Not listing the protocol after the class name.

The protocol is named Runnable, and the class Task conforms to it by listing Runnable after the colon.

5fill in blank

hard

Fill all three blanks to create a Swift package with a public struct and a public method.

iOS Swift

public struct [1] {
    public func [2]() -> String {
        return "[3]"
    }
}

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

ALogger

BlogMessage

CLogging successful

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase struct names.

Not making the method public.

Returning unrelated strings.

The struct is named Logger, the method logMessage, and it returns the string Logging successful.