Why typeof null === “object” in JavaScript
📰 Medium · JavaScript
Learn why typeof null returns 'object' in JavaScript and how to handle this quirk
Action Steps
- Check the type of null using the typeof operator
- Compare the result with other primitive types like undefined and boolean
- Investigate the historical reason behind this behavior in JavaScript
- Apply the knowledge to write more robust type checks in your code
- Test your understanding with sample code snippets
Who Needs to Know This
JavaScript developers and interviewers can benefit from understanding this concept to avoid common mistakes and improve code quality
Key Insight
💡 The typeof operator returns 'object' for null due to a historical reason in JavaScript's development
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Did you know? typeof null === 'object' in JavaScript!
Key Takeaways
Learn why typeof null returns 'object' in JavaScript and how to handle this quirk
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And the interview question that sent me down a rabbit hole. Continue reading on Medium »
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