Node Underground

Jul 25, 2021 · Backend Development

Node.js Debugging Essentials: Env Vars, Exit Codes, Deprecations & Sync I/O

Learn how to effectively debug Node.js applications by leveraging environment variables like DEBUG and NODE_DEBUG, interpreting process exit codes, handling deprecated APIs, detecting synchronous I/O, and managing unhandled promise rejections, with practical code examples and command-line flags to streamline troubleshooting.