What Is Asynchronous Programming?

This video tutorial introduces asynchronous JavaScript, focusing on technologies like Ajax and the Fetch API for making HTTP requests. It explains the differences between synchronous and asynchronous programming, highlighting the drawbacks of blocking code. The tutorial covers handling asynchronous code using callbacks, promises, and async/await, and mentions various libraries and APIs that facilitate asynchronous operations.

What is the primary purpose of using Ajax and the Fetch API in JavaScript?

• To manage databases

• To style web pages

• To create animations

• To make HTTP requests

What is a key characteristic of synchronous programming?

• It is faster than asynchronous programming

• It allows multiple tasks to run simultaneously

• It blocks the execution until a task is completed

• It uses promises to handle tasks

In the context of asynchronous programming, what is a callback function?

• A function that is executed immediately

• A function that is called after a task is completed

• A function that blocks other functions

• A function that is used for styling

Which of the following is a newer method for handling asynchronous operations in JavaScript?

• Promises

• HTML

• XMLHttpRequest

• CSS

What does async/await allow you to do in JavaScript?

• Block the execution of code

• Create synchronous animations

• Write asynchronous code that looks like synchronous code

• Fetch data from a local file