XMLHttpRequest Level 2

XMLHttpRequest Level 2 is a web technology that allows websites to communicate with servers and retrieve data without refreshing the entire page. This means users can load new content dynamically, providing a smoother experience. Introduced as an upgrade to the original XMLHttpRequest, Level 2 supports features like handling different data formats (like JSON), tracking the progress of requests, and managing multiple connections. It plays a crucial role in modern web applications, enabling functionalities such as live chat, notifications, and personalized content updates, making the web more interactive and responsive.