Fix 12-hour clock formatting

Author: shirinpanahian

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

@@ -4,22 +4,56 @@
 
 function formatAs12HourClock(time) {
   const hours = Number(time.slice(0, 2));
+  if (hours === 0) {
+    return `12${time.slice(2)} am`;
+  }
+  if (hours === 12) {
+    return `12${time.slice(2)} pm`;
+  }
   if (hours > 12) {
-    return `${hours - 12}:00 pm`;
+    return `${String(hours - 12).padStart(2, "0")}:${time.slice(3)} pm`;
   }
   return `${time} am`;
 }
 
-const currentOutput = formatAs12HourClock("08:00");
-const targetOutput = "08:00 am";
+const currentOutput = formatAs12HourClock("08:30");
+const targetOutput = "08:30 am";
 console.assert(
   currentOutput === targetOutput,
-  `current output: ${currentOutput}, target output: ${targetOutput}`
+  `current output: ${currentOutput}, target output: ${targetOutput}`,
 );
 
-const currentOutput2 = formatAs12HourClock("23:00");
-const targetOutput2 = "11:00 pm";
+const currentOutput2 = formatAs12HourClock("15:30");
+const targetOutput2 = "03:30 pm";
 console.assert(
   currentOutput2 === targetOutput2,
-  `current output: ${currentOutput2}, target output: ${targetOutput2}`
+  `current output: ${currentOutput2}, target output: ${targetOutput2}`,
 );
+
+const currentOutput5 = formatAs12HourClock("11:59");
+const targetOutput5 = "11:59 am";
+console.assert(
+  currentOutput5 === targetOutput5,
+  `current output: ${currentOutput5}, target output: ${targetOutput5}`,
+);
+
+const currentOutput3 = formatAs12HourClock("00:00");
+const targetOutput3 = "12:00 am";
+
+console.assert(
+  currentOutput3 === targetOutput3,
+  `current output: ${currentOutput3}, target output: ${targetOutput3}`,
+);
+const currentOutput4 = formatAs12HourClock("12:02");
+const targetOutput4 = "12:02 pm";
+
+console.assert(
+  currentOutput4 === targetOutput4,
+  `current output: ${currentOutput4}, target output: ${targetOutput4}`,
+);
+
+console.log(currentOutput, targetOutput);
+console.log(currentOutput2, targetOutput2);
+console.log(currentOutput3, targetOutput3);
+console.log(currentOutput4, targetOutput4);
+console.log(currentOutput5, targetOutput5);