Full Stack Web Development MASTERY Course - Novice to Expert - Fetch API

The video tutorial introduces the Fetch API, a promise-based JavaScript API for making asynchronous HTTP requests. It explains the basic syntax, including the use of the 'then' and 'catch' methods for handling responses and errors. The tutorial covers how to handle JSON responses and demonstrates GET and POST requests using Fetch API, highlighting its advantages over XML HTTP requests.

What is the main advantage of using Fetch API over XML HTTP requests?

• It is synchronous.

• It is promise-based and cleaner.

• It is only supported in Internet Explorer.

• It requires less code.

Which method is used to handle errors in Fetch API?

• error

• catch

• finally

• try-catch

What is the purpose of the 'then' method in Fetch API?

• To wait for the server's response.

• To make synchronous requests.

• To block the user interface.

• To handle errors.

How can you extract JSON data from a Fetch API response?

• Using response.text()

• Using response.json()

• Using response.data()

• Using response.xml()

What does the second 'then' method do when handling JSON data?

• It catches errors.

• It displays the JSON content.

• It sends data to the server.

• It parses the JSON data.

Which HTTP method is primarily used to retrieve data from a server?

• GET

• POST

• PUT

• DELETE

What is the main purpose of the GET method in Fetch API?

• To delete data from the server.

• To retrieve data from the server.

• To update data on the server.

• To send data to the server.

What is required to send data to a server using the POST method?

• A URL, headers, and body parameters

• A URL and headers

• Only headers

• Only a URL

What does the POST method do in Fetch API?

• Retrieves data from the server.

• Deletes data from the server.

• Updates existing data on the server.

• Sends data to the server and creates a new resource.

Which content type is typically used when sending JSON data in a POST request?

• application/json

• text/html

• application/xml

• text/plain