This course focuses on making complex systems transparent and understandable, particularly in the context of Node.js, one of the most popular runtimes for server-side development. It addresses the common issue of Node.js being a “black box,” even for experienced developers.
The course is designed for engineers who want to understand what happens “under the hood” of Node.js, enjoy dissecting code, and seek clarity on unpredictable behaviors of Node applications. It covers topics like why Node processes may exit unexpectedly, the reasons behind long startup times, and the cross-platform functionality of Node.
Participants will learn about the architecture of Node.js, the phases of the event loop, how promises work, module loading, and the internal workings of Node.js, including how it handles asynchronous I/O through libuv, protocols, and concurrency on the OS level. The course will also provide optimization techniques to enhance code performance and identify bottlenecks.
Targeted at developers with intermediate knowledge of Node.js, this course aims to deepen their understanding of its architecture and boost their confidence in using it. A basic understanding of operating system fundamentals is recommended but not mandatory.