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London | May-2026-itp | Vitalii Kmit | Sprint 3 | Alarm clock #1366

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London | May-2026-itp | Vitalii Kmit | Sprint 3 | Alarm clock #1366

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3a1925a
Set up looping alarm
Vitalii-code Aug 1, 2026
d79612d
Revert the previous change for index.html
Vitalii-code Aug 1, 2026
1e6f60f
Add setTimout and setInterval
Vitalii-code Aug 1, 2026
a2d1980
Remove setTimout to pass all tests
Vitalii-code Aug 3, 2026
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71 changes: 70 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,73 @@
function setAlarm() {}
const oneSecondInMilliseconds = 1000;
const lengthOfAlarmSound = 20000;

let timeLeft;
let intervalID;
let timeoutID;
let display;

function setAlarm() {
stopAlarm();

// set up time
timeLeft = document.getElementById("alarmSet").value;
display = document.getElementById("timeRemaining");

// validate result
const result = parseInt(timeLeft);
if (isNaN(result)) {
return;
}

display.textContent = formatTime(timeLeft);

if (!intervalID) {
intervalID = setInterval(updateTimer, 1000);
}

console.log(`Alarm set for ${timeLeft} seconds`);
}

function updateTimer() {
timeLeft = timeLeft - 1;

display.textContent = formatTime(timeLeft);

if (timeLeft <= 0) {
alarmFinished();
cleanUp();
}
}

// give a time in seconds
function formatTime(seconds) {
minutes = Math.floor(seconds / 60);
seconds = seconds % 60;

const seconds_padded = String(seconds).padStart(2, "0");
const minutes_paddded = String(minutes).padStart(2, "0");

const formatted_seconds = `Time Remaining: ${minutes_paddded}:${seconds_padded}`;
return formatted_seconds;
}

function stopAlarm() {
pauseAlarm();
cleanUp();
}

function cleanUp() {
clearInterval(intervalID);
clearTimeout(timeoutID);
timeoutID = null;
intervalID = null;
}

function alarmFinished() {
audio.loop = true;
playAlarm();
console.log("Alarm finished");
}

// DO NOT EDIT BELOW HERE

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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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