found 2 errors and changed code

Author: zakiaao-tech

Sprint-3/1-key-errors/1.js

@@ -2,19 +2,33 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
+// similar problem, the identifier has already been declared in function.
 
 // Try playing computer with the example to work out what is going on
 
-function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
-  const percentage = `${decimalNumber * 100}%`;
+// function convertToPercentage(decimalNumber) {
+//   const decimalNumber = 0.5;
+//   const percentage = `${decimalNumber * 100}%`;
 
-  return percentage;
-}
+//   return percentage;
+// }
 
-console.log(decimalNumber);
+// console.log(decimalNumber);
 
 // =============> write your explanation here
+// similar problem, the identifier 'decimalNumber" has already been declared in function and is a parameter.
+// we can then remove const decimalNumber, then function can also receive different numbers.
+// const percentage = `${decimalNumber * 100} %`;----> this calculates decimalNumber in which case it is 0.5 and multiply it by 100 which = 50 and then we add the % at the end which equals to 50%
+// another error is the console.log that exists outside the function and is tryng to log something that exists inside the function.
+// we want to print the result of the function we can ---> console.log(convertToPercentage(0.5));
 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+
+function convertToPercentage(decimalNumber) {
+  const percentage = `${decimalNumber * 100}%`;
+
+  return percentage;
+}
+
+console.log(convertToPercentage(0.5));