<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>
<style>
</style>
<script>
document.addEventListener('DOMContentLoaded', () => {
const first = document.querySelector('#first')
const second = document.querySelector('#second')
const h1 = document.createElement('h1');
h1.textContent = '추가한 컨텐츠';
const toFirst = () => {
first.appendChild(h1);
setTimeout(toSecond, 1000);
console.log('1')
}
const toSecond = () => {
second.appendChild(h1);
setTimeout(toFirst, 1000);
console.log('2')
}
toFirst()
})
</script>
</head>
<body>
<div id="first">
<h1>first</h1>
</div>
<div id="second">
<h1>second</h1>
</div>
</body>
<script src="script.js"></script>
</html>
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