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London | 26-ITP-Jan | Miriam Jorna | Sprint 3 | Alarmclock #1192

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London | 26-ITP-Jan | Miriam Jorna | Sprint 3 | Alarmclock #1192

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bc46214
alarmclock
miriamjorna Apr 10, 2026
724f78e
added Pause button
miriamjorna Apr 10, 2026
b5531bb
adjustments to let the input be positive integers
miriamjorna Apr 11, 2026
fa5b440
Remove package.json from tracking
miriamjorna Apr 11, 2026
3fb860f
Remove package.json
miriamjorna Apr 11, 2026
055596b
removing package.json as it's blocking the PR to be approved
miriamjorna Apr 11, 2026
57ab5ca
putting package.json back...
miriamjorna Apr 11, 2026
3453a0c
removed redundant pause button and added package.json anew
miriamjorna Apr 11, 2026
459b265
renewed directory due to data corruption
miriamjorna Apr 11, 2026
0a1c10e
corrections and improvements after review
miriamjorna Apr 14, 2026
0df1cfb
corrections after second review
miriamjorna Apr 16, 2026
16a4347
audio reset cleaned up
miriamjorna Apr 16, 2026
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44 changes: 43 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,46 @@
function setAlarm() {}
let countdownId;

// moved to outer scope, takes seconds as a parameter
function updateDisplay(seconds) {
const minutes = Math.floor(seconds / 60);
const remainingSeconds = seconds % 60;
document.getElementById("timeRemaining").textContent =
`Time Remaining: ${String(minutes).padStart(2, "0")}:${String(remainingSeconds).padStart(2, "0")}`;
}

// reset before starting new countdown
function resetAlarm() {
clearInterval(countdownId);
audio.pause();
audio.currentTime = 0;
updateDisplay(0);
document.body.classList.toggle("alarm-activated", false);
}
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@cjyuan cjyuan Apr 16, 2026 •
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Shouldn't this function, resetAlarm() be called in setAlarm()?

You should also reset the audio because the user may not click the Stop button before starting a new countdown.

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@miriamjorna miriamjorna Apr 16, 2026

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Implemented. Thank you for your time!


function setAlarm() {
resetAlarm();
let seconds = parseInt(document.getElementById("alarmSet").value);

if (!seconds || seconds < 1) {
alert("The number of seconds must be higher than 0 please");
return;
}

updateDisplay(seconds);
// pass seconds as argument and update immediately on click

countdownId = setInterval(() => {
seconds--;
updateDisplay(seconds);
// pass seconds as argument

if (seconds <= 0) {
clearInterval(countdownId);
playAlarm();
document.body.classList.toggle("alarm-activated", true);
}
}, 1000);
}

// 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
Expand Up @@ -4,13 +4,13 @@
<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">
<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" min="1" />

<button id="set" type="button">Set Alarm</button>
<button id="stop" type="button">Stop Alarm</button>
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7 changes: 7 additions & 0 deletions Sprint-3/alarmclock/style.css
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@
left: 50%;
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
.alarm-activated {
background-color: darkorange;
}

#alarmSet {
Expand All @@ -13,3 +15,8 @@
h1 {
text-align: center;
}

body {
background-color: cornflowerblue;
font-family: "Trebuchet MS", Tahoma, Verdana, Helvetica, sans-serif;
}
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