Aplly all changes asked by the reviewer

Author: mohsenzamanist

Sprint-2/1-key-errors/1.js

@@ -1,20 +1,19 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> Instead of calling the function, a variable is called
+// =============> Line 9 the variable "decimalNumber" is declared as a parameter passed to the function
+// but again on line 10 inside the function, the variable is declared
 
 // Try playing computer with the example to work out what is going on
 
+const decimalNumber = 0.5;
 function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
   return percentage;
 }
 
-console.log(decimalNumber);
-
-// =============> Also inside the function, decimalNumber is called again
+console.log(convertToPercentage(decimalNumber));
 
 // Finally, correct the code to fix the problem
 // =============> decimalNumber = 0.5;

Sprint-2/1-key-errors/2.js

@@ -1,13 +1,13 @@
-
 // Predict and explain first BEFORE you run any code...
 
 // this function should square any number but instead we're going to get an error
 
 // =============> The variable num is not declared
 
-function square(3) {
-    return num * num;
+function square(num) {
+  return num * num;
 }
+console.log(square(3));
 
 // =============>SyntaxError: Unexpected number
 
@@ -16,5 +16,3 @@ function square(3) {
 // Finally, correct the code to fix the problem
 
 // =============> function square(num) {
-
-

Sprint-2/3-mandatory-implement/1-bmi.js

@@ -17,6 +17,6 @@
 function calculateBMI(weight, height) {
   // return the BMI of someone based off their weight and height
   const bmi = weight / height ** 2;
-  return bmi.toFixed(1);
+  return parseFloat(bmi.toFixed(1));
 }
 console.log(calculateBMI(70, 1.73));

Sprint-2/3-mandatory-implement/2-cases.js

@@ -15,5 +15,5 @@
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 function makeUpperSnakeCase(str) {
-  return str.toUpperCase().split(" ").join("_");
+  return str.toUpperCase().replaceAll(" ", "_");
 }

Sprint-2/5-stretch-extend/format-time.js

@@ -4,7 +4,7 @@
 
 function formatAs12HourClock(time) {
   const hours = Number(time.slice(0, 2));
-  const minutes = time.slice(3);
+  const minutes = time.slice(-2);
   if (hours === 0) return `12:${minutes} am`;
   else if (hours === 12) return `12:${minutes} pm`;
   else if (hours > 12) {