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conditional-events.html
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conditional-events.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Conditional Events</title>
<style>
h1 span {
color: blue;
}
.selected {
color: blue;
font-weight: bold;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col">
<h1>Food! <span>(1)</span></h1>
<hr>
<ul>
<li class="selected">Spaghetti</li>
<li>Curry & Rice</li>
<li>Burrito</li>
<li>Soup</li>
<li>Pizza</li>
</ul>
</div>
</div>
</div>
<script>
document.addEventListener('DOMContentLoaded', (e) => {
const list = document.querySelectorAll('li');
const orderCount = document.querySelector('h1 > span');
for (let l of list) {
let count = 0;
l.addEventListener('click', (e) => {
if (e.target.classList.contains('selected')) {
e.target.classList.remove('selected')
count = document.querySelectorAll('li.selected').length
} else {
e.target.classList.add('selected')
count = document.querySelectorAll('li.selected').length
}
orderCount.textContent = `(${count})`;
});
}
});
</script>
</body>
</html>