Predicted, explained and fixed the code errors.

Author: leigh-ross

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

@@ -2,19 +2,33 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
+// decimalNumber declared inside the function, this is the value that must be an arg
+// line 17 also fails because it tries to access a var that is declared within the 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
+// Remove the local var declaration
+// ReferenceError: decimalNumber is not defined | console.log(decimalNumber);
+// define decimalNumber in line 17 by passing the function with decimalNumber value
+// remove the definition in line 11
 
 // 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));