2-time-format.js

//const movieLength = 8784; // length of movie in seconds

//const remainingSeconds = movieLength % 60;
//const totalMinutes = (movieLength - remainingSeconds) / 60;

//const remainingMinutes = totalMinutes % 60;
//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?

// There are 6 variable declarations in this program. They are on lines 1, 3, 5, 7, 9 and 11. The variables being 
// declared are movieLength, remainingSeconds, totalMinutes, remainingMinutes, totalHours and result.



// b) How many function calls are there?

// There is 1 function calls in this program. It is on lines 10. The functions is the console.log().



// 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 - This gives the remainder when movieLength is divided by 60.
// Since there are 60 seconds in a minute, this tells us how many leftover seconds there are after counting full minutes.
// For example, 8784 % 60 = 24. So there are 24 seconds left after counting the minutes.



// d) Interpret line 4, what does the expression assigned to totalMinutes mean?

// movieLength - remainingSecond - This gives the total number of seconds in the movie after removing the leftover seconds.
// Divide by 60 - this converst the seconds into total full minutes. eg. (8784 - 24) = 8760, 8760 / 60 = 146.



// e) What do you think the variable result represents? Can you think of a better name for this variable?

// The variable result is a string that represents the movie length in hours:minutes:seconds
// For example: 2:26:24 (2 hours, 26 minutes, 24 seconds)
// Better name can be movieDurationString.



// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer

// This code will work for all positive integer values of movieLength. It will correctly calculate the hours, minutes and seconds 
// for any length of movie. However, if movieLength is negative or not an integer, the code may not work as intended. For example, 
// if movieLength is -100, the calculations will not make sense in the context of a movie length. If movieLength is a decimal, it 
// may also cause issues with the calculations.

const movieLength = 65;

const remainingSeconds = movieLength % 60;
const totalMinutes = (movieLength - remainingSeconds) / 60;

const remainingMinutes = totalMinutes % 60;
const totalHours = (totalMinutes - remainingMinutes) / 60;

const formattedHours = String(totalHours).padStart(2, "0");
const formattedMinutes = String(remainingMinutes).padStart(2, "0");
const formattedSeconds = String(remainingSeconds).padStart(2, "0");

const movieDurationString = `${formattedHours}:${formattedMinutes}:${formattedSeconds}`;

console.log(movieDurationString); // 00:01:05