Update 3-to-pounds.js

Author: Ayogit1

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

@@ -25,3 +25,13 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+// 2. Lines 3 to 6: extracts "399" as a string and assigns the values to penceStringWithoutTrailingP.
+//    It uses the substring to extract from position 0 to 3.
+// 3. Line 8: padStart is used to pad the values in penceStringWithoutTrailingP with "0" from the start of the value to make up a length of 3.
+//    Since penceStringWithoutTrailingP already has "399" with a length of 3, no padding is done.
+// 4. Line 9 to 12: substring is used to extract from paddedPenceNumberString,  starting from position 0 to 1 giving 3 which is stored in the variable pounds.
+// 5. Line 14 to 16: substring is used to extract from paddedPenceNumberString, starting from position 1 to the end givin "99"
+//    "99" is padded with "0" from the end of the value to make a length of 2 but sincw "99" already has a length of 2, no padding is done.
+//    "99" is assigned to the variable pence.
+// 6. Line 18: uses console.log() to print the values of pounds and pence preceeded by "£" and separated by "." to give "£3.99"
+