JavaScript Program to find factorial of a number

In this program, You will learn how to find factorial of a number in JavaScript.


for (init; condition; increment/decrement) {
    // statement
}

JavaScript Program to find factorial of a number

Example: How to find factorial of a number in JavaScript

let num = parseInt(prompt("Enter a number:"));
let f = 1;
for (i = 1; i <= num; i++) {
  f = f * i
}
console.log("Factorial is:" + f)

Output:

Enter a number:> 5
Factorial is:120