answered all questions

Author: remimarcelle

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

@@ -12,14 +12,24 @@ 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?
+// 6 -> movieLength, remainingSeconds, totalMinutes, remainingMinutes, totalHours, result
 
 // b) How many function calls are there?
+// -> console.log() on the last line
 
 // 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 modulo (remainder) operator. movieLength % 60 gives the leftover seconds
+// after dividing by 60. e.g. 8784 / 60 = 146 remainder 24, so remainingSeconds = 24
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+// movieLength - remainingSeconds gives the total number of seconds that can be divided into whole minutes.
+// Dividing this by 60 gives the total number of whole minutes in the movie. e.g. 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?
+// result represents the movie length formatted as hours:minutes:seconds e.g. "2:26:24"
+// A better name could be formattedMovieLength or totalFormattedMovieLength
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// It works for any positive whole number of seconds.
+// It won't work correctly for negative values or decimals as % behaves unexpectedly with those.