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Cape Town | 26-ITP-May | Shafiek Walker | Sprint 3 | Alarm Clock App #1348

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Cape Town | 26-ITP-May | Shafiek Walker | Sprint 3 | Alarm Clock App #1348

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581733d
Complete Sprint 3 alarm clock
shafiekwalker7861 Jul 31, 2026
f4b6c87
Address alarm clock review feedback
shafiekwalker7861 Aug 8, 2026
0325533
Address alarm clock review feedback
shafiekwalker7861 Aug 8, 2026
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47 changes: 46 additions & 1 deletion Sprint-3/alarmclock/alarmclock.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,49 @@
function setAlarm() {}
let countdownId;
let secondsRemaining = 0;

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

const formattedMinutes = String(minutes).padStart(2, "0");
const formattedSeconds = String(seconds).padStart(2, "0");

return `${formattedMinutes}:${formattedSeconds}`;
}

function updateTimeRemaining(seconds) {
const heading = document.getElementById("timeRemaining");

heading.textContent = `Time Remaining: ${formatTime(seconds)}`;
}

function setAlarm() {
window.clearInterval(countdownId);
pauseAlarm();
audio.currentTime = 0;

Comment on lines +21 to +24

@cjyuan cjyuan Aug 5, 2026

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A user may not click the "Stop" button first before starting a new count down. Are there any other application states that should also be reset?

@shafiekwalker7861 shafiekwalker7861 Aug 8, 2026

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Thank you. I updated setAlarm() to pause and rewind any existing alarm audio before starting a new countdown.

const input = document.getElementById("alarmSet");
const enteredSeconds = Number.parseInt(input.value, 10);

if (Number.isNaN(enteredSeconds) || enteredSeconds <= 0) {
secondsRemaining = 0;
updateTimeRemaining(secondsRemaining);
return;
}

secondsRemaining = enteredSeconds;
updateTimeRemaining(secondsRemaining);

countdownId = window.setInterval(() => {
secondsRemaining -= 1;
updateTimeRemaining(secondsRemaining);

if (secondsRemaining === 0) {
window.clearInterval(countdownId);
playAlarm();
}
}, 1000);
}

// DO NOT EDIT BELOW HERE

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2 changes: 1 addition & 1 deletion Sprint-3/alarmclock/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
<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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