<!DOCTYPE html>
<html lang="ko">
<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>버튼클릭시 숫자 올라가는 addEventListener 함수</title>
</head>
<body>
<span>Total clicks : 0</span>
<button id="btn">Click me </button>
<script>
let counter = 0;
const button = document.getElementById("btn");
const span = document.querySelector('span');
function handleClick() {
counter = counter + 1;
span.innerText = `Total clicks : ${counter}`;
}
button.addEventListener("click", handleClick);
</script>
</body>
</html>
기록하기