index.html
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>자소서 글자수 계산기</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<style>
h1 {
margin-top: 30px;
}
#count {
float: right;
}
</style>
</head>
<body class="container">
<h1>자기소개</h1>
<textarea class="form-control" rows="3" id="jasoseol">저는 인성 문제가 없습니다.</textarea>
<span id="count">(0/200)</span>
<script>
const content = document.getElementById('jasoseol');
const count = document.getElementById('count');
count.innerHTML = `(${content.value.length}/200)`;
content.addEventListener("input", counter);
function counter(e){
const value = e.target.value;
if(value.length > 200) e.target.value = value.substring(0, 200);
count.innerHTML = `(${e.target.value.length}/200)`;
}
</script>
</body>
</html>
건축학도의 프론트엔드 개발자 되기