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Author: RaeesStevens

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

@@ -25,3 +25,28 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+
+// 3. const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1): 
+// Takes the characters from index 0 up to (but not including) the last character.
+// penceString.length is 4, so this is substring(0,3), resulting in "399". 
+// The purpose is to remove the "p" so only digits remain.
+
+// 8. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0")
+// Adds "0"s to the start until the string is at least 3 characters long.
+// The purpose is to guarantee at least one digit for pounds and two digits for pence.
+
+// 9. const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2);
+// The purpose is to make the pounds all the digits before the last two, by taking everything except the last two characters: substring(0,1), giving "3"
+
+// 14. const pence = paddedPenceNumberString .substring(paddedPenceNumberString.length - 2).padEnd(2, "0");
+// substring(1) takes from index 1 to the end, giving "99".
+// padEnd(2, "0") adds "0"s to the end until it is two characters long, so "99" stays "99".
+// The purpose is too ensure the pence are always the last two digits.
+// The padEnd does not change anything here since line 8 already guarantees at leas 3 characters, so the last two characters always exist.
+
+// 18. console.log(`£${pounds}.${pence}`);
+// Call function using a template literal to combine "£", the pounds, a ".", and the pence, then prints "£3.99".
+
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