fix bugs

Author: pathywang

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

@@ -23,3 +23,41 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+ 
+// i put this function for test in console, chrome but it showed undefined then i put 12:00 and the output is:Uncaught SyntaxError: 
+// Unexpected token.so the function is not workable and has some bugs.Unfortunately, i can not work out by myself, i went to chatGpt which 
+// explained the detail to me. function format12HourClock(time) does not work right because it does not work for 12:00, 24:00 d not for
+// minutes either. The right function should be:
+
+function formatAs12HourClock(time) {
+  const hours24 = Number(time.slice(0, 2));
+  const minutes = time.slice(3);
+  
+  const period = hours24 >= 12 ? "pm" : "am";
+  const hours12 = hours24 % 12 === 0 ? 12 : hours24 % 12;
+
+  return `${String(hours12).padStart(2, "0")}:${minutes} ${period}`;
+}
+
+const currentOutput = formatAs12HourClock("08:00");
+const targetOutput = "08:00 am";
+console.assert(
+  currentOutput === targetOutput,
+  `current output: ${currentOutput}, target output: ${targetOutput}`
+);
+
+const currentOutput2 = formatAs12HourClock("23:00");
+const targetOutput2 = "11:00 pm";
+console.assert(
+  currentOutput2 === targetOutput2,
+  `current output: ${currentOutput2}, target output: ${targetOutput2}`
+);
+
+// const period = hours24 >= 12 ? "pm" : "am";This line uses a ternary operator — a concise way to write an if...else statement.
+// If hours24 is greater than or equal to 12, then set period to "pm".Otherwise, set it to "am".
+
+// const hours12 = hours24 % 12 === 0 ? 12 : hours24 % 12;This is also a ternary operator (shortcut for if...else) 
+// used to convert 24-hour time to 12-hour time format, which means:"If hours24 % 12 is 0, then set hours12 to 12, 
+// otherwise set it to hours24 % 12." For me, i can understand now with chatgpt help.
+
+