null

Lesson in the JavaScript Roadmap · Stage 3: Data Types

Last updated 14 September 2026

What is null?

null is a primitive value that explicitly represents the absence of any value or object. It is typically used to indicate that a variable intentionally holds no value. typeof null returns "object", which is a known quirk of the language from its original implementation.

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null: common questions

Can I learn null 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 null 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 null tutorial for beginners?

It is lesson 27 of 124 in the free JavaScript roadmap, in stage 3, Data Types. If you are new to JavaScript, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.