Updated BMI calculation to use exponentiation operator

Author: lamlakamana-oss

Sprint-3/3-mandatory-implement/1-bmi.js

@@ -6,7 +6,7 @@
 
 function calculateBMI(weight, height) {
   // return the BMI of someone based off their weight and height
-  const bmi = weight / (height * height);
+  const bmi = weight / (height ** 2);
   return bmi.toFixed(1);
 }
-console.log(calculateBMI(70, 1.73));
+console.log(calculateBMI(70, 1.73));