convertToPercentage function

Author: Darkidd77

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

@@ -2,19 +2,34 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
+// I predict that the decimalNumber variable will be timed 100 and will get a percentage value of 50%, but that only my predictions.
 
 // 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
+// SyntaxError: Identifier 'decimalNumber' has already been declared
+// This error occurs because we have declared the variable decimalNumber twice, 
+// once as a parameter and once as a variable inside the function.
+
+// apparently there is another error that we only console logged the variable decimalNumber which is not declared in the global scope,
+//  to fix this we instead call the function convertToPercentage with a decimal number as an argument and log the result of that function call to the console.
 
 // 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));