Solve firstFactorial

SafdarJamal · SafdarJamal · commit 5fe538145318 · 2019-12-16T23:57:30.000+05:00
diff --git a/src/First_Factorial.js b/src/First_Factorial.js
@@ -0,0 +1,26 @@
+// Description: For this challenge you will be determining the factorial for a
+// given number.
+
+// Q. Have the function FirstFactorial(num) take the num parameter being passed
+//    and return the factorial of it. For example: if num = 4, then your
+//    program should return (4 * 3 * 2 * 1) = 24. For the test cases, the range
+//    will be between 1 and 18 and the input will always be an integer.
+
+// Examples
+// Input: 4
+// Output: 24
+
+// Input: 8
+// Output: 40320
+
+const firstFactorial = num => {
+  let factorial = 1;
+
+  for (let i = 1; i <= num; i++) {
+    factorial = factorial * i;
+  }
+
+  return factorial;
+};
+
+console.log(firstFactorial(4));
