described the purpose and rationale behind each step

Author: arunkumarakilan

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

@@ -1,9 +1,6 @@
 const penceString = "399p";
 
-const penceStringWithoutTrailingP = penceString.substring(
-  0,
-  penceString.length - 1
-);
+const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1);
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
@@ -25,3 +22,17 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+// 2. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1); Here we use subString() to extracts everything except the last character.
+// 3.const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+// padStart(3, "0") ensures the string has at least 3 characters.
+// If the string is shorter than 3, zeros ("0") are added at the beginning.
+// If the string is already 3 or more characters, nothing changes.
+// padStart() ensures the code works for all pence values, including 1-digit and 2-digit numbers.
+// Without padStart(), the logic would only work correctly for numbers that already have 3 or more digits.
+// 4.const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);
+// This line used extract the pound value 3 from the padded pence string 399 . 
+// 5.const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");
+//This line extracts the last two digits from paddedPenceNumberString by starting at length - 2 and going to the end. 
+// Then padEnd(2, "0") ensures the pence value always has two digits.
+// 6.console.log(`£${pounds}.${pence}`);
+// Here we use console.log() to print our output and merge the pound value and pence value and add pound symbol using template literals.