Complete Sprint-3 interpret exercise (time-format.js)

Author: lwandogwele52-ui

Sprint-3/4-mandatory-interpret/time-format.js

@@ -11,28 +11,41 @@ function formatTimeDisplay(seconds) {
   const totalMinutes = (seconds - remainingSeconds) / 60;
   const remainingMinutes = totalMinutes % 60;
   const totalHours = (totalMinutes - remainingMinutes) / 60;
-
   return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
 
-// You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
+// You will need to play computer with this example – use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
 // to help you answer these questions
 
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> write your answer here
+// ==============> write your answer here
+// pad will be called 3 times — once for totalHours, once for remainingMinutes,
+// and once for remainingSeconds, since all three appear inside the template
+// literal on the return line.
 
 // Call formatTimeDisplay with an input of 61, now answer the following:
 
 // b) What is the value assigned to num when pad is called for the first time?
-// =============> write your answer here
-
-// c) What is the return value of pad when it is called for the first time?
-// =============> write your answer here
-
-// d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> write your answer here
-
-// e) What is the return value of pad when it is called for the last time in this program?  Explain your answer
-// =============> write your answer here
+// ==============> write your answer here
+// num = 0 (this is totalHours, since (61-1)/60 = 1 minute total, and
+// (1-1)/60 = 0 hours, and pad(totalHours) is the first call in the template
+// literal)
+
+// c) What is the return value of pad it is called for the first time?
+// ==============> write your answer here
+// "00" — pad(0) converts 0 to the string "0", which has length 1, so a
+// leading "0" is added, making it "00"
+
+// d) What is the value assigned to num when pad is called for the last time in this program? Explain your answer
+// ==============> write your answer here
+// num = 1 (this is remainingSeconds — 61 % 60 = 1 — and pad(remainingSeconds)
+// is the last of the three pad() calls in the template literal)
+
+// e) What is the return value of pad when it is called for the last time in this program? Explain your answer
+// ==============> write your answer here
+// "01" — pad(1) converts 1 to the string "1", which has length 1, so a
+// leading "0" is added, making it "01"
+
+console.log(formatTimeDisplay(61)); // "00:01:01"