sprint 3 ex4-5

Author: Yama948

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

@@ -21,18 +21,18 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> write your answer here
+// =============> write your answer here : 3 times, once for totalHours, once for remainingMinutes, once for remainingSeconds, since the template literal contains three separate pad(...) calls.
 
 // 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
+// =============> write your answer here : totalHours is 0, num is 0 on the first call.
 
 // c) What is the return value of pad when it is called for the first time?
-// =============> write your answer here
+// =============> write your answer here "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
+// =============> write your answer here : pad(remainingSeconds), and since remainingSeconds is 1, num is 1 on this final call.
 
 // 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 : "01"

Sprint-3/5-stretch-extend/format-time.js

@@ -23,3 +23,57 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+
+
+// Midnight
+const currentOutput3 = formatAs12HourClock("00:00");
+const targetOutput3 = "12:00 am";
+console.assert(
+  currentOutput3 === targetOutput3,
+  `current output: ${currentOutput3}, target output: ${targetOutput3}`
+);
+
+// Noon
+const currentOutput4 = formatAs12HourClock("12:00");
+const targetOutput4 = "12:00 pm";
+console.assert(
+  currentOutput4 === targetOutput4,
+  `current output: ${currentOutput4}, target output: ${targetOutput4}`
+);
+
+// PM time with non-zero minutes
+const currentOutput5 = formatAs12HourClock("13:45");
+const targetOutput5 = "01:45 pm";
+console.assert(
+  currentOutput5 === targetOutput5,
+  `current output: ${currentOutput5}, target output: ${targetOutput5}`
+);
+
+// Just before midnight
+const currentOutput6 = formatAs12HourClock("23:59");
+const targetOutput6 = "11:59 pm";
+console.assert(
+  currentOutput6 === targetOutput6,
+  `current output: ${currentOutput6}, target output: ${targetOutput6}`
+);
+
+
+//FIXED VERSIONS
+
+function formatAs12HourClock(time) {
+  const [hoursString, minutes] = time.split(":");
+  let hours = Number(hoursString);
+  let period = "am";
+
+  if (hours === 0) {
+    hours = 12;
+  } else if (hours === 12) {
+    period = "pm";
+  } else if (hours > 12) {
+    hours = hours - 12;
+    period = "pm";
+  }
+
+  const paddedHours = hours.toString().padStart(2, "0");
+  return `${paddedHours}:${minutes} ${period}`;
+}