3.11 – Factorial Program in JavaScript | for Loop Logic | New Series

Welcome to the JavaScript for MERN Developers – Job-Ready Series (New Series) by Burle Sharma. In this video (Chapter-03 | Class-11), we solve one of the most important programs in programming: 👉 Write a program to accept a number and display the factorial of the number. This program helps students understand multiplication-based accumulation logic using loops. 📚 Program Explained in This Video Write a program to accept a number (n) and calculate its factorial. Factorial Formula: n! = n × (n-1) × (n-2) × ... × 1 Example: Input: 5 Output: 5 × 4 × 3 × 2 × 1 = 120 🔹 Explanation Flow in This Video 🔹 Writing the expected output first 🔹 Understanding the factorial concept 🔹 Introducing a result variable 🔹 Writing the program step-by-step 🔹 Using for loop for multiplication 🔹 Performing detailed dry run 🔹 Executing the program to verify output 🎓 What You Will Learn 🔹 What is a factorial 🔹 How to use loop for multiplication-based logic 🔹 How to use an accumulator variable 🔹 Strengthening loop concepts 🔹 Importance of dry run and execution 🧠 Key Learning Point Factorial is a very important concept used in: ✔ Mathematics and permutations ✔ Algorithm design ✔ Competitive programming It also helps in understanding: ✔ Iterative multiplication ✔ Loop control #JavaScript #JavaScriptNewSeries #Factorial #JSPrograms #ForLoop #LearnJavaScript #MERNStack #LogicBuilding #BurleSharma #GeeCoding