1.js

Author: Abayie

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

@@ -2,19 +2,32 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
+// An error will occur because 'decimalNumber' is redeclared inside the function using 'const', 
+// which is not allowed. Also, 'decimalNumber' is not defined in the global scope, 
+// so console.log(decimalNumber) will throw a ReferenceError.
 
 // 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
+// The error occurs because we cannot redeclare the parameter 'decimalNumber' inside the function 
+// using 'const'. Also, 'decimalNumber' is not defined outside the function, so 
+// console.log(decimalNumber) will throw a ReferenceError.
 
 // 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(0.9)); // Output: 90%