Answer questions on formatTimeDisplay and pad function

Author: khalidbih

Sprint-2/4-mandatory-interpret/time-format.js

@@ -18,17 +18,22 @@ function formatTimeDisplay(seconds) {
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
+// It is called 3 times, once for hours, once for minutes, and once for seconds.
 
 // 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
+// The first argument passed to pad is totalHours, which is 0.
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
+// The first call to pad returns "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
+// The last call to pad receives num = 1, because remainingSeconds = 61 % 60 = 1.
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
+// The last call to pad returns "01". The number 1 is converted to a string and padded to two characters with a leading 0.