added function called toPounds

Author: abmhts

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

@@ -4,3 +4,26 @@
 // 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("4000p"));
+  console.log(toPounds("39p"));
+  console.log(toPounds("3p"));