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London | 26-ITP-May | Dagim Daniel | Sprint 3 | Alarm clock #1331

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London | 26-ITP-May | Dagim Daniel | Sprint 3 | Alarm clock #1331

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e30ba62
tasks under Sprint 3 alarm has been done
Dagim-Daniel Jul 28, 2026
eeb63cd
cleaning code and fixing pre validation
Dagim-Daniel Aug 3, 2026
976ffc8
fix the comments given on alarmClock
Dagim-Daniel Aug 4, 2026
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64 changes: 60 additions & 4 deletions Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,64 @@
function setAlarm() {}
const display = document.querySelector("#timeRemaining");
const totalSeconds = document.querySelector("#alarmSet");
const setButton = document.querySelector("#set");
const stopButton = document.querySelector("#stop");
let countDownInterval;

function formatTime(totalSeconds) {
const minutes = Math.floor(totalSeconds / 60);
const seconds = totalSeconds % 60;

const paddedMinutes = String(minutes).padStart(2, "0");
const paddedSeconds = String(seconds).padStart(2, "0");
return `Time Remaining: ${paddedMinutes}:${paddedSeconds}`;
}

function reset() {
clearInterval(countDownInterval);
display.textContent = "Time Remaining: 00:00";
display.style.color = "black";
setButton.disabled = false;
document.body.style.background = "";
}

setButton.addEventListener("click", () => {
let timeLeft = Number(totalSeconds.value);

if (timeLeft <= 0 || isNaN(timeLeft)) {
alert("please enter a number greater than zero (0)!");
return;
}
setButton.disabled = true;

const warningTime = 10; // seconds

display.textContent = formatTime(timeLeft);
countDownInterval = setInterval(() => {
display.textContent = formatTime(timeLeft);
timeLeft--;

if (timeLeft >= 0) {
display.textContent = formatTime(timeLeft);
}

if (timeLeft <= warningTime) {
display.style.color = "red";
}

if (timeLeft <= 0) {
clearInterval(countDownInterval);
document.body.style.backgroundColor = "grey";
playAlarm();
}
}, 1000);
});

stopButton.addEventListener("click", () => {
clearInterval(countDownInterval);
reset();
pauseAlarm();
});
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cjyuan marked this conversation as resolved.

// DO NOT EDIT BELOW HERE

Expand All @@ -8,10 +68,6 @@ function setup() {
document.getElementById("set").addEventListener("click", () => {
setAlarm();
});

document.getElementById("stop").addEventListener("click", () => {
pauseAlarm();
});
Comment on lines -11 to -14

@cjyuan cjyuan Aug 5, 2026

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There is an instruction saying "DO NOT EDIT BELOW HERE" on line 63 though. :D

}

function playAlarm() {
Expand Down
6 changes: 3 additions & 3 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">
Expand All @@ -15,6 +15,6 @@ <h1 id="timeRemaining">Time Remaining: 00:00</h1>
<button id="set" type="button">Set Alarm</button>
<button id="stop" type="button">Stop Alarm</button>
</div>
<script src="alarmclock.js"></script>
<script src="alarmclock.js" defer></script>
</body>
</html>
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