implement 3

Author: ihortar

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

@@ -4,3 +4,31 @@
 // 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(str)
+{   
+// 1. const penceString = "399p": initialises a string variable with the value "399p"
+const penceStringWithoutTrailingP = str.substring(
+  0,
+  str.length - 1
+);
+
+//2. removes "P" from the string
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+//3. Ensures the string is at least 3 characters long by adding 0 to the start
+const pounds = paddedPenceNumberString.substring(
+  0,
+  paddedPenceNumberString.length - 2
+);
+
+//4. Extracts everything except the last 2 digits of paddedPenceNumberString
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+  return pence
+}
+//5. takes the last 2 digits as the pence from paddedPenceNumberStringCollapse comment
+console.log(toPounds("399p"))
+console.log(toPounds("400p"))
+console.log(toPounds("301p"))
+console.log(toPounds("302p"))