FinalizationRegistry for Efficient Memory Cleanup: An In-Depth Exploration Introduction JavaScript's memory management is typically handled by the garbage collector, which automatically frees memory occupied by objects no longer in use. However, in some cases—especially when working with complex structures or APIs involving native resources—there may be a need for fine-grained control over cleanup processes. Enter the FinalizationRegistry , an addition to the language introduced in ECMAScript 2021 (ES12) to address the problem of resource management and memory leaks after an object is garbage collected. In this article, we'll provide a comprehensive overview of the FinalizationRegistry , including its historical context, technical breakdown, real-world use cases, performance implications, and debugging strategies. By the end, you should have a robust understanding of how to implement this API effectively and efficiently in advanced JavaScript applications.…