The Modern JavaScript Bootcamp (2019) - HTTP Requests from JavaScript

The video tutorial introduces asynchronous programming by demonstrating how to make HTTP requests to fetch third-party data. It explains the HTTP protocol, request-response cycle, and how to use developer tools to view network activity. The tutorial provides a practical example of making HTTP requests using JavaScript, focusing on fetching JSON data from an API and parsing it. It also covers setting up event listeners to handle different states of an HTTP request, emphasizing the importance of handling responses and potential errors.

What is the main purpose of making an HTTP request in the context of the Hangman game?

• To store user data

• To update the user interface

• To compile JavaScript code

• To fetch a random phrase for the game

What does HTTP stand for?

• Hypertext Transfer Protocol

• Hyperlink Text Protocol

• Hypertext Transmission Protocol

• Hyperlink Transfer Protocol

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

• PUT

• GET

• POST

• DELETE

What is the purpose of the XMLHttpRequest object in JavaScript?

• To create a new HTML document

• To send and receive data from a server

• To style web pages

• To manage user sessions

What is the role of the 'open' method in an XMLHttpRequest?

• To parse JSON data

• To close the connection

• To initialize the request with a method and URL

• To send data to the server

What is the purpose of the 'send' method in an XMLHttpRequest?

• To send the request to the server

• To parse the response

• To initialize the request

• To close the connection

Which event listener is used to detect when an XMLHttpRequest has completed?

• finish

• readystatechange

• load

• complete

What does the 'readyState' property indicate in an XMLHttpRequest?

• The status of the server

• The current state of the request

• The size of the response

• The type of data being sent

How can JSON data be converted into a JavaScript object?

• Using JSON.stringify

• Using JSON.decode

• Using JSON.parse

• Using JSON.convert

Which property of the XMLHttpRequest object contains the response data as a string?

• responseXML

• responseText

• responseJSON

• responseData