typeof operator
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What is typeof operator?
The typeof operator returns a string indicating the type of an operand. It works with primitives and functions but has some quirks, such as returning "object" for null. It is commonly used to check whether a variable is defined or to guard against unexpected types in a function.
Free resources to learn typeof operator
- Articletypeof Reference
More in stage 3: Data Types
typeof operator: common questions
Can I learn typeof operator 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 typeof operator 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 typeof operator tutorial for beginners?
It is lesson 19 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.