update: convertToPercentage function to fix redeclaration error and explain Sprint-2/1-key-errors/1.js

Author: SuWebOnes

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

@@ -5,16 +5,35 @@
 
 // Try playing computer with the example to work out what is going on
 
-function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
-  const percentage = `${decimalNumber * 100}%`;
-
-  return percentage;
-}
+// function convertToPercentage(decimalNumber) {
+// const decimalNumber = 0.5;
+// The above line will cause an error because 'decimalNumber' is being redeclared with 'const'
+// after it has already been defined as a parameter of the function.
+// This will result in a SyntaxError: Identifier 'decimalNumber' has already been declared.
+//  it is trying to declare a new constant variable with the same name as the parameter of the function: decimalNumber
+// const percentage = `${decimalNumber * 100}%`;
+// The above line correctly converts the decimal number to a percentage by multiplying it by 100
+// and appending a '%' sign.
+// However, the function will not execute due to the redeclaration error.
 
-console.log(decimalNumber);
+//   return percentage;
+// // }
 
+// console.log(decimalNumber);
+// console.log(decimalNumber) outside the function — but decimalNumber was only defined inside the function.
 // =============> write your explanation here
 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+function convertToPercentage(decimalNumber) {
+  const percentage = `${decimalNumber * 100}%`;
+  return percentage;
+}
+// =============> write your explanation here
+// The function now correctly takes a decimal number as input, converts it to a percentage by multiplying it by 100,
+// and returns the result as a string with a '%' sign appended. The redeclaration error has been fixed by removing the
+// unnecessary declaration of 'decimalNumber' inside the function. The function can now be called with a decimal number,
+// and it will return the corresponding percentage string.
+console.log(convertToPercentage(0.5)); // "50%"
+
+// The function now works correctly and returns the expected output without any errors.