Network Requests in JavaScript course. JavaScript-based applications typically use APIs to retrieve data and send data to the server. This course will teach you all about making HTTP requests with JavaScript. Most JavaScript-based applications use APIs to retrieve and send data from the server. In this course, Network Requests in JavaScript, you will learn to use JavaScript to communicate with APIs. First, you’ll explore how to send HTTP requests and process the returned data. Next, you’ll explore security-related features like CORS. Finally, you’ll learn how to use WebSockets for high-performance communications. After completing this course, you will have the JavaScript skills and knowledge needed to work with APIs and network requests.