null vs undefined in JavaScript | Interview Question Explained with Real-Life Examples & Insights

❓ null vs undefined — two of the most confusing concepts in JavaScript interviews.
But do you really know how they differ?

🔍 At a glance, both look like “nothing”...
But in JavaScript, they’re completely different!

✅ undefined means a variable has been declared but not assigned a value.
✅ null is intentionally assigned to represent “no value” or “nothing”.

🔗 Think of it like this:

undefined is JavaScript saying: “I don’t know yet.”

null is you saying: “This is nothing — on purpose.”

⚠️ In interviews, most beginners confuse them or assume they’re the same.
But interviewers love asking this to test your core JS understanding.

🧠 Wanna stand out in interviews?
👉 Master the why behind each concept, not just the definition.

🚀 I’ve broken it down visually in this reel – watch it till the end and boost your JavaScript fundamentals!

---

✅ CTA (Call-to-Action):

💬 Drop a ♥️" in the comments if this cleared your doubt!
📌 Save this reel so you never forget it in #javascript interviews!
📲 subscribe this channel for daily JavaScript insights that actually make sense.