Tutorial 9: Build a Factorial Calculator in JavaScript (FreeCodeCamp Project)

🧮 In this tutorial, we build a Factorial Calculator App in JavaScript — all in under 10 minutes! This is Tutorial 9 in my FreeCodeCamp JavaScript series, where I’m learning to code by solving real-world challenges as part of my full-stack developer journey. 📚 What You’ll Learn in This Video: What factorials are (5! = 5×4×3×2×1) How to build a factorial calculator using a for loop Why factorials matter in coding, math, and computer science When to use loops vs recursion for factorial problems 💡 We also explore real-world uses like: Permutations & combinations Password generation Genetics & binomial formulas Math and science applications Whether you're studying for coding interviews or just want to master JavaScript fundamentals, this quick project is a must-know! 🔗 Watch the full FreeCodeCamp Series: https://www.youtube.com/playlist?list=PLPbILVuc6xlR04ICAkVn8g01w-HP4c5SR GitHub: https://github.com/NKWILI LinkedIn: https://linkedin.com/in/alain-ngongang-0b57ab19a #JavaScript #Factorial #FreeCodeCamp #CodingChallenge #FrontendDev #MathInCode #LearnToCode