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London | 26-ITP-Jan | Carlos Abreu |Sprint 3 | Alarm Clock #1140

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London | 26-ITP-Jan | Carlos Abreu |Sprint 3 | Alarm Clock #1140

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24a79fa
Committed alarmclock.js and index.html
carlosyabreu Mar 28, 2026
c583604
Committed package.json
carlosyabreu Mar 28, 2026
98a6e87
Merge branch 'main' into coursework/sprint-3/alarmclock
carlosyabreu Mar 28, 2026
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65 changes: 64 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,52 @@
function setAlarm() {}
let timerInterval = null;
let currentTime = 0;

function setAlarm() {
// Clear any existing timer
if (timerInterval) {
clearInterval(timerInterval);
timerInterval = null;
}

// Get the input value
const input = document.getElementById("alarmSet");
let totalSeconds = parseInt(input.value);

// Validate input (if empty or invalid, default to 0)
if (isNaN(totalSeconds)) {
totalSeconds = 0;
}

currentTime = totalSeconds;

// Update the display
updateTimeDisplay(currentTime);

// Start the countdown
timerInterval = setInterval(() => {
if (currentTime > 0) {
currentTime--;
updateTimeDisplay(currentTime);

// Check if timer reached zero
if (currentTime === 0) {
clearInterval(timerInterval);
timerInterval = null;
playAlarm();
// Change background color
document.body.style.backgroundColor = "red";
}
}
}, 1000);
}

function updateTimeDisplay(totalSeconds) {
const minutes = Math.floor(totalSeconds / 60);
const seconds = totalSeconds % 60;
const formattedTime = `${minutes.toString().padStart(2, "0")}:${seconds.toString().padStart(2, "0")}`;
const heading = document.getElementById("timeRemaining");
heading.textContent = `Time Remaining: ${formattedTime}`;
}

// DO NOT EDIT BELOW HERE

Expand All @@ -16,10 +64,25 @@ function setup() {

function playAlarm() {
audio.play();
// Play continuously by looping
audio.loop = true;
}

function pauseAlarm() {
audio.pause();
audio.currentTime = 0;
// Reset background color when alarm is stopped
document.body.style.backgroundColor = "";

// Clear any ongoing timer
if (timerInterval) {
clearInterval(timerInterval);
timerInterval = null;
}

// Reset display to 00:00
currentTime = 0;
updateTimeDisplay(0);
}

window.onload = setup;
4 changes: 2 additions & 2 deletions Sprint-3/alarmclock/index.html
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
<!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">
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2 changes: 1 addition & 1 deletion Sprint-3/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@
"@testing-library/dom": "^10.4.0",
"@testing-library/jest-dom": "^6.6.3",
"@testing-library/user-event": "^14.6.1",
"jest": "^30.0.4",
"jest": "^30.3.0",
"jest-environment-jsdom": "^30.0.4"
}
}
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