How does JavaScript's garbage collection mechanism work?

Thank you for posing such an insightful question. Understanding JavaScript's garbage collection mechanism is pivotal for optimizing performance and ensuring efficient memory management, especially when dealing with large-scale applications. As a Full Stack Developer, I've had firsthand experience tackling memory leaks and enhancing application performance by leveraging the principles of garbage collection in JavaScript. JavaScript employs an automatic garbage collection strategy, which means developers don't need to manually free up memory. This is crucial in preventing memory leaks and allowing us to focus on the core logic of our applications. The garbage collection mechanism uses two primary algorithms: mark-and-sweep and reference-counting. Initially, JavaScript utilized the reference-counting algorithm, which tracks the number of references to an object...