created a reusable function called topounds

Author: AdnaanA

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

@@ -4,3 +4,28 @@
 // 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
+
+
+function toPounds(penceString) {
+const penceStringWithoutTrailingP = penceString.substring(
+  0,
+  penceString.length - 1 // to remove the trailing 'p'
+);
+
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+const pounds = paddedPenceNumberString.substring(
+  0,
+  paddedPenceNumberString.length - 2 // all but the last two characters
+);
+
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)  // the last two characters
+  .padEnd(2, "0");  // in case there is only one character of pence
+
+return `£${pounds}.${pence}`;
+}
+
+console.log(toPounds("399p")); // should log "£3.99"
+console.log(toPounds("5p")); // should log "£0.05"
+console.log(toPounds("89p")); // should log "£0.89"
+console.log(toPounds("123456p")); // should log "£1234.56"