Optimize your website with accessibility and performance in mind. Learn best practices for meeting web accessibility guidelines and tools like WAVE, Lighthouse, and aXe to test for accessibility. Additionally, discover how to improve page load times using tools like Google PageSpeed Insights, YSLOW, and WebPageTest.

Mastering Node.js involves understanding event-driven architecture and non-blocking I/O, two key concepts that make Node.js efficient and scalable. Learn how Node.js uses event-driven architecture to handle incoming events and non-blocking I/O to handle I/O operations without blocking the event loop, and see how they work together in real-world examples.

Optimizing React Native App Performance through Profiling and Debugging Techniques.