diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..094781c1d 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,39 @@
-function setAlarm() {}
+let timer;
+
+function updateDisplay(time) {
+
+ const heading = document.getElementById("timeRemaining");
+ const minutes = Math.floor(time / 60);
+ const seconds = time % 60;
+
+ heading.innerText =
+ "Time Remaining: " +
+ String(minutes).padStart(2, "0") +
+ ":" +
+ String(seconds).padStart(2, "0");
+}
+
+function setAlarm() {
+ let time = Number(document.getElementById("alarmSet").value);
+ if (!Number.isInteger(time) || time <= 0) return;
+
+ updateDisplay(time);
+
+ if (timer) clearInterval(timer);
+ audio.pause();
+ audio.currentTime = 0;
+
+ timer = setInterval(function () {
+ time = time - 1;
+
+ updateDisplay(time);
+
+ if (time <= 0) {
+ playAlarm();
+ clearInterval(timer);
+ }
+ }, 1000);
+}
// DO NOT EDIT BELOW HERE
@@ -22,4 +57,4 @@ function pauseAlarm() {
audio.pause();
}
-window.onload = setup;
+window.onload = setup;
\ No newline at end of file
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..ff2d3b453 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,7 +4,7 @@
- Title here
+ Alarm clock app