diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..aee4b98c6 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,25 +1,62 @@
-function setAlarm() {}
+let alarmIntervalId = null;
-// DO NOT EDIT BELOW HERE
+function setAlarm() {
+ const input = document.getElementById("alarmSet");
+ const heading = document.getElementById("timeRemaining");
+ let seconds = parseInt(input.value, 10);
-var audio = new Audio("alarmsound.mp3");
+ // Reject invalid input instead of silently treating it as 0
+ if (!Number.isFinite(seconds) || seconds < 0) {
+ heading.innerText = "Please enter a valid number of seconds";
+ return;
+ }
-function setup() {
- document.getElementById("set").addEventListener("click", () => {
- setAlarm();
- });
+ function formatMMSS(s) {
+ const mm = Math.floor(s / 60)
+ .toString()
+ .padStart(2, "0");
+ const ss = (s % 60).toString().padStart(2, "0");
+ return `Time Remaining: ${mm}:${ss}`;
+ }
- document.getElementById("stop").addEventListener("click", () => {
- pauseAlarm();
- });
-}
+ heading.innerText = formatMMSS(seconds);
+
+ if (alarmIntervalId) {
+ clearInterval(alarmIntervalId);
+ alarmIntervalId = null;
+ }
-function playAlarm() {
- audio.play();
+ // If it's already zero, play immediately and don't start an interval
+ if (seconds === 0) {
+ playAlarm();
+ return;
+ }
+
+ alarmIntervalId = setInterval(() => {
+ seconds -= 1;
+ if (seconds > 0) {
+ heading.innerText = formatMMSS(seconds);
+ } else {
+ heading.innerText = formatMMSS(0);
+ clearInterval(alarmIntervalId);
+ alarmIntervalId = null;
+ playAlarm();
+ }
+ }, 1000);
}
-function pauseAlarm() {
- audio.pause();
+function stopAlarm() {
+ const heading = document.getElementById("timeRemaining");
+
+ if (alarmIntervalId) {
+ clearInterval(alarmIntervalId);
+ alarmIntervalId = null;
+ }
+
+ heading.innerText = "Time Remaining: 00:00";
}
-window.onload = setup;
+document.getElementById("set").addEventListener("click", setAlarm);
+document.getElementById("stop").addEventListener("click", stopAlarm);
+
+
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..b180ce889 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,17 +4,16 @@
- Title here
+ Alarm Clock App
+
-
Time Remaining: 00:00
-
-
+
+ Time Remaining: 00:00
-