Description

Course Program: Asynchronous Programming

1. Introduction to Asynchronous Programming

• What is asynchronous programming and why it’s important.

• The concept of blocking vs non-blocking code.

• Overview of the event loop and how it works in JavaScript.

2. Callbacks

• Understanding callbacks and their role in asynchronous code.

• Writing basic callback functions.

• Handling callback hell and solutions (e.g., modularization, early returns).

3. Promises

• What is a Promise and how to create one.

• States of a promise: pending, resolved, rejected.

• Chaining promises with .then() and .catch().

• Using .finally() to run code after a promise settles.

4. Async/Await

• Introduction to async and await syntax.

• Converting promise-based code to async/await.

• Error handling with try/catch in asynchronous functions.

• How async/await simplifies asynchronous code.

5. Working with APIs

• Using the fetch() function to make HTTP requests.

• Handling JSON data from APIs.

• Making GET, POST, PUT, DELETE requests using fetch and async/await.

• Error handling when working with APIs.

6. Concurrent Asynchronous Operations

• Running multiple asynchronous tasks concurrently using Promise.all().

• Handling multiple promises and waiting for them to resolve.

• Using Promise.allSettled() and Promise.race() for advanced scenarios.

7. Timers and Delays

• Using setTimeout() and setInterval() for delayed execution.

• Managing asynchronous timing events and handling delays in code.

8. Practical Exercises

• Building an app that fetches data from an API and displays it on a webpage.

• Creating a series of asynchronous tasks that run concurrently.

• Handling errors and loading states while making asynchronous requests.

9. Final Project

• Creating a mini-project that combines promises, async/await, and API calls to build a real-world application.

Expected Outcomes:

• Strong understanding of asynchronous JavaScript concepts.

• Ability to write clean and efficient asynchronous code using callbacks, promises, and async/await.

• Proficiency in working with APIs and managing concurrent asynchronous operations.