Modern JavaScript from the Beginning - Second Edition - Section Introduction-Asynchronous JavaScript

This video tutorial introduces asynchronous JavaScript, explaining its core synchronous nature and how web APIs provide asynchronous capabilities. It covers the basics of callbacks and promises, and delves into Ajax and the XML HTTP request object. The tutorial also discusses the Fetch API and async/await, highlighting the transition from older XHR methods. The video aims to familiarize viewers with both traditional and modern asynchronous techniques in JavaScript.

What is the fundamental nature of JavaScript?

• Asynchronous

• Synchronous

• Parallel

• Concurrent

Which of the following is used to achieve asynchronous capabilities in JavaScript?

• CSS

• SQL

• HTML

• Web APIs

What are the two main asynchronous functionalities discussed in this section?

• Classes and Objects

• Callbacks and Promises

• Loops and Conditions

• Variables and Functions

Which object is associated with Ajax in JavaScript?

• XML HTTP request object

• JSON Parser

• DOM Manipulator

• Event Listener

What has largely replaced the older XHR object in modern JavaScript?

• DOM API

• Event API

• Fetch API

• JSON API