TUTO 20: I Built a Palindrome Checker in JavaScript! (FreeCodeCamp Challenge)

Опубликовано: 18 Май 2026
на канале: Alain Dev
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🔁 In this video, I build a Palindrome Checker app using HTML, CSS, and JavaScript — all in under 30 minutes! This is Tutorial 20 in my FreeCodeCamp JavaScript Challenge series, where I’m learning full stack development one project at a time.

💡 What You’ll Learn in This Video:

What a palindrome is and how to detect it in code

How to clean user input using regex

Remove punctuation, spaces, and symbols from strings

Convert strings to lowercase and check for equality

Reverse strings and use strict equality for validation

Display results dynamically on the page using DOM manipulation

🧑‍💻 Project Features:

Real-time palindrome checking

Input validation with alerts for empty values

Interactive button triggering result

Fully responsive design using only JavaScript (no libraries!)

📌 Whether you're starting your JavaScript journey or revisiting string manipulation and regex, this is the perfect beginner-friendly challenge from the FreeCodeCamp curriculum.

🎯 Follow My Dev Journey:
👉 GitHub: https://github.com/NKWILI

👉 LinkedIn:   / alain-ngongang-0b57ab19a  

👉 Series Playlist:    • Build Real JavaScript Projects (FreeCodeCa...  

👍 Like, 💬 Comment, and 🔔 Subscribe to support the journey!

#JavaScript #PalindromeChecker #FreeCodeCamp #WebDevelopment #Regex #DOMManipulation #CodingJourney #FrontendDevelopment #LearnToCode #AlainDev