Fix handling of midnight of formatAs12HourClock function

Author: JohnRob-jnr

Sprint-2/5-stretch-extend/format-time.js

@@ -8,7 +8,7 @@ function formatAs12HourClock(time) {
   const hours = Number(time.slice(0, 2));
   const minutes = time.slice(3, 5);
 
-  if (hours === 0) {
+  if (hours === 0 || hours === 24) {
     return `12:${minutes} am`;
   }
   else if (hours > 12) {
@@ -47,4 +47,11 @@ const targetOutput4 = "12:00 pm";
 console.assert(
   currentOutput4 === targetOutput4,
   `current output: ${currentOutput4}, target output: ${targetOutput4}`
+);
+
+const currentOutput5 = formatAs12HourClock("24:00");
+const targetOutput5 = "12:00 am";
+console.assert(
+  currentOutput5 === targetOutput5,
+  `current output: ${currentOutput5}, target output: ${targetOutput5}`
 );