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2024-spring-dmd-3475/week-10/index.html

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<!doctype html>
<html class="no-js" lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Stopwatch App</title>
<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="https://use.typekit.net/xpy5krv.css">
<meta name="description" content="Stopwatch app that allows you to time anything whenever you want!">
</head>
<body>
<div class="main">
<h3>Online Stopwatch</h3>
<h1>00:00</h1>
<div class="buttons">
<button class="start">Start</button>
<button class="reset">Reset</button>
</div>
</div>
<script>
let timer;
let seconds = 0;
let minutes = 0;
let btn = document.querySelector('button.start');
let resetbtn = document.querySelector('button.reset');
btn.addEventListener('click', function() {
if (btn.innerText === "Start") {
timer = setInterval(updateStopwatch, 1000);
btn.innerText = "Stop";
} else {
clearInterval(timer);
btn.innerText = "Start";
}
})
resetbtn.addEventListener('click', function() {
clearInterval(timer);
seconds = 0;
minutes = 0;
displayTime();
if (btn.innerText === "Stop") {
btn.innerText = "Start";
}
})
function updateStopwatch() {
seconds++;
if (seconds === 60) {
seconds = 0;
minutes++;
}
displayTime();
}
function displayTime() {
const display = document.querySelector('h1');
const formattedTime = formatTime(minutes) + ':' + formatTime(seconds);
display.textContent = formattedTime;
}
function formatTime(time) {
if (time < 10) {
return '0' + time;
} else {
return time;
}
}
</script>
</body>
</html>