diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..8214be63d 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,49 @@
-function setAlarm() {}
+let secondsLeft; // Stores how many seconds are left in the countdown.
+let intervalId; // Stores the interval ID so the timer can be stopped later.
+
+function setAlarm() {
+ // Stop and reset the alarm sound before starting a new timer.
+ audio.loop = false;
+ audio.pause();
+ audio.currentTime = 0; // Reset the audio back to the beginning.
+
+ // Stop any previous countdown before starting a new one.
+ clearInterval(intervalId);
+
+ // Reset the background color when a new alarm is set.
+ document.body.style.backgroundColor = "white";
+
+ // Read the input value, convert it to a number, and show it immediately.
+ // This gives instant feedback instead of waiting one second for the interval.
+ const seconds = document.getElementById("alarmSet").value;
+ secondsLeft = Number(seconds);
+ const mins = Math.floor(secondsLeft / 60);
+ const sec = secondsLeft % 60;
+ const timerDisplay = `${mins.toString().padStart(2, "0")}:${sec.toString().padStart(2, "0")}`;
+ document.getElementById("timeRemaining").textContent =
+ `Time Remaining: ${timerDisplay}`;
+ // Run the countdown every second.
+ // Each tick reduces the remaining time, updates the display,
+ // and stops the timer when the countdown reaches zero.
+ intervalId = setInterval(() => {
+ secondsLeft--;
+ const mins = Math.floor(secondsLeft / 60);
+ const sec = secondsLeft % 60;
+ const timerDisplay = `${mins.toString().padStart(2, "0")}:${sec.toString().padStart(2, "0")}`;
+ document.getElementById("timeRemaining").textContent =
+ `Time Remaining: ${timerDisplay}`;
+ if (secondsLeft <= 0) {
+ clearInterval(intervalId);
+ document.body.style.backgroundColor = "red";
+ playAlarm();
+ }
+ }, 1000);
+}
+
+// Expose functions globally so Jest tests can see them.
+window.setAlarm = setAlarm;
+window.playAlarm = playAlarm;
+window.pauseAlarm = pauseAlarm;
// DO NOT EDIT BELOW HERE
@@ -15,10 +60,13 @@ function setup() {
}
function playAlarm() {
+ // Keep the alarm sound repeating until it is stopped.
+ audio.loop = true; // Repeat the sound continuously.
audio.play();
}
function pauseAlarm() {
+ audio.loop = false; // Stop the looping sound.
audio.pause();
}
diff --git a/Sprint-3/alarmclock/alarmclockapp.html b/Sprint-3/alarmclock/alarmclockapp.html
new file mode 100644
index 000000000..1eee34345
--- /dev/null
+++ b/Sprint-3/alarmclock/alarmclockapp.html
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+ Benji's Alarm Clock Example
+
+
+