SwiftUI and Node.js Full Stack - Build Twitter - iOS 16 - Unlike Tweet

This video tutorial covers the implementation of the 'unlike' functionality for tweets, similar to the 'unfollow' feature. It involves setting up a PUT route, checking if a tweet is already liked, and removing the user's ID from the likes array. Error handling is emphasized to prevent issues like unliking a tweet multiple times. The tutorial concludes with testing the functionality using Postman to ensure it works as expected.

What is the main difference between unliking a tweet and disliking a video on YouTube?

• Unliking a tweet removes a like, while disliking a video adds a dislike.

• Both actions remove a like from the content.

• Both actions add a dislike to the content.

• Unliking a tweet adds a dislike, while disliking a video removes a like.

Which HTTP method is used to implement the unlike functionality?

• PUT

• POST

• GET

• DELETE

What is the purpose of the try and catch block in the unlike functionality?

• To speed up the process

• To handle potential errors

• To make the code more readable

• To add more likes

How does the code check if a tweet has already been liked by the user?

• By checking the tweet's content

• By checking the tweet's timestamp

• By checking the likes array for the user's ID

• By checking the user's profile

What operation is used to remove the user's ID from the likes array?

• Push

• Shift

• Pull

• Pop

What status code is returned when a tweet is successfully unliked?

• 200

• 403

• 404

• 500

Why is it important to check if a user has already unliked a tweet?

• To prevent duplicate unlikes

• To allow multiple unlikes

• To decrease server load

• To increase server load