Answer interpretation questions for time format

Author: lauracs24

Sprint-1/3-mandatory-interpret/2-time-format.js

@@ -9,17 +9,40 @@ const totalHours = (totalMinutes - remainingMinutes) / 60;
 const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
 console.log(result);
 
-// For the piece of code above, read the code and then answer the following questions
-
 // a) How many variable declarations are there in this program?
+// Declarations are lines that use const or let
+// const movieLength
+// const remainingSeconds
+// const totalMinutes
+// const remainingMinutes
+// const totalHours
+// const result
+// My answer: 6 variable declarations
 
 // b) How many function calls are there?
+// A function call uses parentheses like something(..)
+// console.log(result) is a function call
+// My answer: 1 function call
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
-// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+// % is the remainder operator
+// movieLength % 60 gives the leftover seconds after dividing by 60
+// (the seconds part that doesn't make a full minute)
+// Answer: it represents the remaining seconds
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+// totalMinutes = (movieLength - remainingSeconds) / 60
+// First it removes the leftover seconds so we have an exact number of seconds that fits into whole minutes
+// Then it divides by 60 to convert seconds into minutes
+// Answer: it calculates the total whole minutes in the movie
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
+// result is a string that formats the time as hours:minutes:seconds
+// Better name: formattedTime or movieDuration
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// It works for normal positive numbers (seconds) like 8784
+// It will also run for 0 (gives 0:0:0)
+// But negative values would produce negative hours/minutes/seconds, which isn't a real time format
+// So it assumes movieLength is a non-negative number
+