JavaScript String Interview Questions | Count Vowels & Palindrome Explained with Examples

Pubblicato il: 27 dicembre 2025
sul canale di: code_with_puja
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In this video, we solve two very important JavaScript string interview questions step by step:

1️⃣ Count Vowels in a String using JavaScript
2️⃣ Palindrome Checker in JavaScript

These questions are frequently asked in JavaScript interviews, coding rounds, and placements.
I explain the logic in a simple way with edge cases and real examples, making it perfect for beginners and freshers.

🔍 Topics Covered:

• How to count vowels in a string
• Case-insensitive vowel checking
• What is a palindrome
• How to reverse a string in JavaScript
• Handling edge cases like empty string
• Clean and interview-ready JavaScript code

🎯 Who Should Watch?

• JavaScript beginners
• MERN stack developers
• Interview preparation candidates
• Students learning DSA in JavaScript

Watch till the end to clearly understand string manipulation in JavaScript 🔥
Don’t forget to Like 👍 Share 📤 and Subscribe 🔔 for more coding interview questions.

🧠 Notes / Pinned Comment for Video

JavaScript Interview String Questions Explained

Count vowels using array + includes

Convert characters to lowercase for case-insensitive check

Reverse string using split, reverse, join

Compare original and reversed string for palindrome

Handles edge cases like empty string and single character

Practice these questions daily for better logic building 💪



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