Changed sprint 1, 3-mandatory-interpret to reusable code

Author: simanongawuza

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

@@ -4,3 +4,15 @@
 // 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);
+  const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+  const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length -2);
+  const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length -2).padEnd(2, "0");
+  return `${pounds}.${pence}`;
+}
+console.log(toPounds("399p"))
+console.log(toPounds("10p"))
+console.log(toPounds("1023p"))
+console.log(toPounds("5p"))