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The Silent Killers in Node.js: uncaughtException and unhandledRejection 🐦

  • Node.js architecture can lead to critical errors like uncaughtExceptions and unhandledPromiseRejections.
  • Uncaught exceptions occur when errors are thrown but not caught, and unhandled promise rejections happen when promises are not caught with a .catch().
  • Ignoring these errors can lead to process termination without cleanup, affecting data integrity, causing resource leaks, silent failures, and security risks.
  • Best practices include handling fatal errors by logging full context, reporting to error-tracking services, gracefully shutting down, and converting unhandled rejections into exceptions.

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