JavaScript Errors

Lesson in the Node.js Roadmap · Stage 5: Async Programming

Last updated 14 September 2026

What is JavaScript Errors?

JavaScript errors are runtime errors thrown by the language itself, such as TypeError, RangeError, and ReferenceError. These occur when code tries to perform an invalid operation, like calling a method on undefined. They can be caught using try/catch blocks or error event listeners.

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Free resources to learn JavaScript Errors

ArticleJavaScript error reference - MDN

JavaScript Errors: common questions

Can I learn JavaScript Errors 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 JavaScript Errors 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 JavaScript Errors tutorial for beginners?

It is lesson 24 of 113 in the free Node.js roadmap, in stage 5, Async Programming. 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.