Asynchronous Programming in JavaScript - Complete Course

Overview

Class Central Tips

JavaScript wasn't initially designed for asynchronous operations, but with some adjustments, you can effectively manage asynchronous code to ensure data is used only after it's fully fetched. In this course, you'll master every aspect of asynchronous JavaScript through easy-to-understand examples and detailed explanations. You'll explore event loops, JavaScript's behind-the-scenes workings, asynchronous code execution, callbacks and their limitations, the advent of promises, and how Async Await beautifies promises. You'll apply these concepts in three real-world mini-projects, including handling multiple promises and errors using Async Await. By the end, you'll have a thorough understanding of asynchronous JavaScript. Designed for JavaScript developers, web developers, programmers, and front-end developers familiar with frameworks like Angular, React, Vue, or Svelte, this course will elevate your asynchronous programming skills and enhance your resume. Some knowledge of JavaScript will be an added advantage to get through the course.

Syllabus

Introduction

In this module, we will establish a strong foundation for the course by introducing you to its objectives and key concepts. You will learn the differences between synchronous and asynchronous operations in JavaScript, delve into how multi-threading works, and gain insights into event loops, call stacks, and web APIs.

Callback Functions

In this module, we will dive into the intricacies of callback functions, exploring their role and applications in JavaScript. You will learn how to implement callbacks in various contexts, handle errors effectively, and navigate the complexities of callback hell. Additionally, you will gain hands-on experience through a mini-project that reinforces these concepts.

Promises

In this module, we will explore the powerful concept of promises in JavaScript, starting with their fundamental purpose and functionality. You will learn how to create and use promises to manage asynchronous code, handle promise results with .then(), .catch(), and .finally(), and construct promise chains for sequential operations. We will also dive into advanced error-handling techniques and the process of promisification. The module culminates in a mini-project that demonstrates the practical application of promises.

Async Await

In this module, we will take a comprehensive look at async and await, key features that simplify working with promises in JavaScript. You will learn how to use async and await to resolve multiple promises, handle errors effectively, and streamline asynchronous code. The module concludes with a mini-project that allows you to apply these concepts to load a style script using async and await.