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London | 26-ITP-May | Damilola Odumosu| Sprint 3 | Alarm Clock #1360

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London | 26-ITP-May | Damilola Odumosu| Sprint 3 | Alarm Clock #1360

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605f059
Implemented the set alarm funtion.
d-odumosu Aug 2, 2026
d898ba0
fixed: added and id to the span and selected by getelementbyid
d-odumosu Aug 13, 2026
27b8dc6
made all suggested changes
d-odumosu Aug 13, 2026
2568171
made all suggested changes
d-odumosu Aug 13, 2026
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46 changes: 45 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,49 @@
function setAlarm() {}
const input = document.getElementById("alarmSet");
const timeRemaining = document.getElementById("timeRemaining");
const message = document.getElementById("message");

let intervalId = null;

function getTime() {
const time = Number(input.value);
if (!(Number.isInteger(time) && time >= 1)) {
message.textContent = "Enter a valid number";
return null;
}
return time;
}

function updateTime(time) {
let minutes = Math.floor(time / 60);
let seconds = time % 60;
minutes = minutes.toString().padStart(2, "0");
seconds = seconds.toString().padStart(2, "0");
timeRemaining.textContent = `Time Remaining: ${minutes}:${seconds}`;
}

function setAlarm() {
let timeInput = getTime();
if (timeInput === null) {
return;
}
resetAlarm();
updateTime(timeInput);
intervalId = setInterval(() => {
timeInput--;
updateTime(timeInput);
if (timeInput === 0) {
playAlarm();
clearInterval(intervalId);
intervalId = null;
}
}, 1000);
}

function resetAlarm() {
clearInterval(intervalId);
intervalId = null;
updateTime(0);
}
// DO NOT EDIT BELOW HERE

var audio = new Audio("alarmsound.mp3");
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35 changes: 18 additions & 17 deletions Sprint-3/alarmclock/index.html
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Original file line number Diff line number Diff line change
@@ -1,20 +1,21 @@

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Title here</title>
</head>
<body>
<div class="centre">
<h1 id="timeRemaining">Time Remaining: 00:00</h1>
<label for="alarmSet">Set time to:</label>
<input id="alarmSet" type="number" />

<button id="set" type="button">Set Alarm</button>
<button id="stop" type="button">Stop Alarm</button>
</div>
<script src="alarmclock.js"></script>
</body>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Alarm clock app</title>
</head>
<body>
<div class="centre">
<h1 id="timeRemaining">Time Remaining: 00:00</h1>
<h2 id="message"></h2>
<label for="alarmSet">Set time to:</label>
<input id="alarmSet" type="number" min="1" />
<button id="set" type="button">Set Alarm</button>
<button id="stop" type="button">Stop Alarm</button>
</div>
<script src="alarmclock.js"></script>
</body>
</html>