Скачать или смотреть JavaScript Interview Questions in 60 Seconds! 💻⚡️ Crack the Next JS Round Like a Pro!

🧠 JavaScript Interview Questions in 60 Seconds!

Want to ace your next JavaScript developer interview? 🎯
This quick-fire short gives you the most commonly asked JavaScript questions, simplified and delivered fast to help you crack technical rounds with confidence. 💥

Whether you’re a fresher, frontend dev, or preparing for senior roles — this short is for you! 💼💻

📚 Top JavaScript Interview Questions You’ll Learn in 60s:
1️⃣ What is a closure?
A closure is a function that remembers the variables from its outer scope even after that scope has closed.

2️⃣ Difference between var, let, and const?

var: function-scoped

let & const: block-scoped

const: cannot be reassigned

3️⃣ What is Hoisting?
JS moves declarations to the top of the scope before code execution.

4️⃣ Explain ‘this’ in JS.
Depends on context:

In a function: global or undefined (strict)

In object: refers to the object

5️⃣ What are Promises?
A way to handle async operations in JS, offering .then() & .catch() methods.

6️⃣ Difference between == and === ?

== checks for value (loose equality)

=== checks for value + type (strict equality)

7️⃣ What is Event Delegation?
Attaching a single event listener to a parent instead of each child.

8️⃣ Explain debounce vs throttle

Debounce: Delays execution until user stops triggering

Throttle: Ensures execution only once per X ms

9️⃣ What are Arrow Functions?
Shorter syntax & lexical this binding.

🔟 What is the Event Loop?
It handles the call stack and callback queue, allowing async behavior.

💬 Why These Questions Matter:
📌 90% of frontend interviews include these questions.
📌 Most are used daily in React, Vue, or vanilla JS projects.
📌 Understanding them shows depth, not just syntax memorization.

💼 Ideal For:
✅ JavaScript Developers
✅ Frontend Engineers
✅ Full Stack Devs
✅ Tech Interview Prep
✅ Bootcamp Grads
✅ College Placements

🔥 Pro Interview Tips:
🧠 Understand concepts, don’t memorize
🗣️ Practice explaining in simple words
👨‍💻 Code live — not just write on paper
⏱️ Practice under time pressure

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