explained the purpose of each function and the use of each step

Author: AdnaanA

Sprint-1/3-mandatory-interpret/3-to-pounds.js

@@ -1,21 +1,21 @@
-const penceString = "399p";
+const penceString = "1399p"; // stores the price in pence as a string with a trailing 'p'
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
   penceString.length - 1
-);
+);  // removes the trailing 'p' from the string to isolate the numeric part
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
-);
+);  // extracts the pounds part by taking all but the last two characters
 
 const pence = paddedPenceNumberString
-  .substring(paddedPenceNumberString.length - 2)
-  .padEnd(2, "0");
+  .substring(paddedPenceNumberString.length - 2)  // extracts the last two characters as the pence part
+  .padEnd(2, "0");  // ensures the pence part is two digits by padding with '0' if necessary
 
-console.log(`£${pounds}.${pence}`);
+console.log(`£${pounds}.${pence}`);  // outputs the formatted price in pounds and pence
 
 // This program takes a string representing a price in pence
 // The program then builds up a string representing the price in pounds