Different display of pounds

Author: carlosyabreu

Sprint-2/3-mandatory-implement/3-to-pounds.js

@@ -4,3 +4,56 @@
 // You will need to declare a function called toPounds with an appropriately named parameter.
 
 // You should call this function a number of times to check it works for different inputs
+
+/**
+let penceString = "399p";
+
+let penceStringWithoutTrailingP = penceString.substring(
+  0,
+  penceString.length - 1
+);
+
+let paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+let pounds = paddedPenceNumberString.substring(
+  0,
+  paddedPenceNumberString.length - 2
+);
+
+let pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+
+console.log(`£${pounds}.${pence}`);
+*/
+
+// Function to convert a pence string (like "399p") to pounds
+function toPounds(penceString) {
+    // Remove the trailing 'p'
+    let penceStringWithoutTrailingP = penceString.substring(
+        0,
+        penceString.length - 1
+    );
+
+    // Pad the string to ensure at least 3 digits
+    let paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+
+    // Extract pounds
+    let pounds = paddedPenceNumberString.substring(
+        0,
+        paddedPenceNumberString.length - 2
+    );
+
+    // Extract pence
+    let pence = paddedPenceNumberString
+        .substring(paddedPenceNumberString.length - 2)
+        .padEnd(2, "0");
+
+    return `£${pounds}.${pence}`;
+}
+
+// Example usage:
+console.log(toPounds("399p")); // Output: £3.99
+console.log(toPounds("5p"));   // Output: £0.05
+console.log(toPounds("1234p")); // Output: £12.34
+console.log(toPounds("50p"));   // Output: £0.50
+