Dive into the intricacies of memory management in JavaScript with this 24-minute conference talk from Node Congress 2021. Explore the challenges of complex application development and learn how to tackle out-of-memory errors and ensure fast response times. Gain insights into Node.js internals, profilers, and the garbage collector to write safer, faster, and less error-prone code. Discover techniques to identify and fix memory leaks, ultimately providing the best experience for both developers and end-users. This talk equips you with the knowledge to optimize your JavaScript applications and maintain peak performance, even in large-scale projects.