1- const movieLength = 8784 ; // length of movie in seconds
1+ const movieLength = - 9876 ; // length of movie in seconds
22
33const remainingSeconds = movieLength % 60 ;
44const totalMinutes = ( movieLength - remainingSeconds ) / 60 ;
@@ -11,15 +11,41 @@ console.log(result);
1111
1212// For the piece of code above, read the code and then answer the following questions
1313
14+
1415// a) How many variable declarations are there in this program?
16+ //There are six variable declarations in this program. The lines where variable declarations are made:
17+ //1. Line 1: const movieLength = 8784;
18+ //2. Line 3: const remainingSeconds = movieLength % 60;
19+ //3. Line 4: const totalMinutes = (movieLength - remainingSeconds) / 60;
20+ //4. Line 6: const remainingMinutes = totalMinutes % 60;
21+ //5. Line 7: const totalHours = (totalMinutes - remainingMinutes) / 60;
22+ //6. Line 9: const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
1523
1624// b) How many function calls are there?
25+ //There are two function calls in this program. The lines where function calls are made are:
26+ //1. Line 9: `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
27+ //2. Line 10: console.log(result);
1728
1829// c) Using documentation, explain what the expression movieLength % 60 represents
1930// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
2031
32+ //The expression "movieLength % 60" calculates the remainder when the value of "movieLength" is divided by 60.
33+ //In this context, it is used to determine the number of seconds remaining after converting the total movie
34+ //length from seconds into minutes. Since there are 60 seconds in a minute, this operation effectively gives us the
35+ //leftover seconds that do not make up a full minute.
36+
2137// d) Interpret line 4, what does the expression assigned to totalMinutes mean?
38+ //The expression assigned to "totalMinutes" in line 4 calculates the total number of minutes in the movie length.
39+ //It does this by first subtracting the remaining seconds (calculated in line 3) from the total movie length in seconds.
40+ //This gives the total number of seconds that can be fully converted into minutes. Then, it divides that value by 60 to
41+ //convert the total seconds into total minutes. The result is the total number of complete minutes in the movie length,
42+ //excluding any leftover seconds.
2243
2344// e) What do you think the variable result represents? Can you think of a better name for this variable?
45+ // The variable result represents the formatted time string in the format "hours:minutes:seconds".
46+ // A better name for this variable could be "formattedTime" or "movieDuration"
2447
2548// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
49+ //The code will work for all positive integer values of movieLength, as it correctly calculates the hours, minutes,
50+ //and seconds based on the total length in seconds. But will not work for negative values of movieLength,
51+ //as it will produce negative hours, minutes, and seconds, which does not make sense in the context of a movie length.
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