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London | 26-ITP-May | Bisrat Tesfay | Sprint 3 | Alarmclock #1330

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London | 26-ITP-May | Bisrat Tesfay | Sprint 3 | Alarmclock #1330

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4882255
Implement function for alarm clock.
B3-Bisrat Jul 27, 2026
bf81515
I added some html and css.
B3-Bisrat Jul 28, 2026
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35 changes: 34 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,37 @@
function setAlarm() {}
let timer;
function setAlarm() {
const input = document.getElementById("alarmSet");
let seconds = Number(input.value);

@Luro91 Luro91 Jul 30, 2026

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What happens when seconds are 0 or negative?


const timeRemaining = document.getElementById("timeRemaining");

clearInterval(timer);

function updateDisplay() {

@Luro91 Luro91 Jul 30, 2026

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Good job putting the code for formatting into an own function. This makes it reusable and easier to change the formatting if needed

const minutes = Math.floor(seconds / 60);
const remainingSeconds = seconds % 60;

const formattedTime =
String(minutes).padStart(2, "0") +
":" +
String(remainingSeconds).padStart(2, "0");

timeRemaining.textContent = `Time Remaining: ${formattedTime}`;
}

updateDisplay();

timer = setInterval(() => {
if (seconds > 0) {
seconds--;
updateDisplay();
} else {
clearInterval(timer);
playAlarm();
document.body.style.backgroundColor = "red";

@Luro91 Luro91 Jul 30, 2026

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The color stays red when the timer is restarted. How can you change this?

}
}, 1000);
}

// DO NOT EDIT BELOW HERE

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7 changes: 4 additions & 3 deletions Sprint-3/alarmclock/index.html
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Original file line number Diff line number Diff line change
@@ -1,16 +1,17 @@
<!DOCTYPE html>
<!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>
<title>Alarm clock app</title>
</head>
<body>
<div class="centre">
<h2>⏰ Alarm Clock</h2>
<h1 id="timeRemaining">Time Remaining: 00:00</h1>
<label for="alarmSet">Set time to:</label>
<input id="alarmSet" type="number" />
<input id="alarmSet" type="number" placeholder="Seconds" />

<button id="set" type="button">Set Alarm</button>
<button id="stop" type="button">Stop Alarm</button>
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34 changes: 34 additions & 0 deletions Sprint-3/alarmclock/style.css
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@Luro91 Luro91 Jul 30, 2026

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Nice stylings. This makes the page look nicer

Original file line number Diff line number Diff line change
Expand Up @@ -13,3 +13,37 @@
h1 {
text-align: center;
}

body {
background-color: #f4f4f4;
font-family: Arial, sans-serif;
}

.centre {
background-color: white;
padding: 30px;
border-radius: 10px;
box-shadow: 0 4px 10px gray;
}

button {
padding: 10px 15px;
margin: 5px;
border: none;
border-radius: 5px;
cursor: pointer;
}

#set {
background-color: green;
color: white;
}

#stop {
background-color: red;
color: white;
}

button:hover {
opacity: 0.9;
}
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