Uncaught Exceptions

Lesson in the Node.js Roadmap · Stage 6: Command Line Apps

Last updated 14 September 2026

What is Uncaught Exceptions?

An uncaught exception is an error that is not handled anywhere in the application, causing the Node.js process to crash. You can listen for these with the process.on('uncaughtException', ...) event, though it should be used carefully and mainly for logging before shutting down gracefully. Relying on it as a catch-all is considered bad practice.

Study this in the interactive course See the whole Node.js roadmap

Free resources to learn Uncaught Exceptions

Official docsUncaught Exception Error Events
ArticleLet It Crash: Best Practices for Handling Node.js Errors on Shutdown
ArticleUncaught Exceptions in Node.js

Uncaught Exceptions: common questions

Can I learn Uncaught Exceptions in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Uncaught Exceptions in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Uncaught Exceptions tutorial for beginners?

It is lesson 40 of 113 in the free Node.js roadmap, in stage 6, Command Line Apps. If you are new to Node.js, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.