영상
개념
<!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>onclick</title>
</head>
<body>
<style>
#out_div {
background: green;
height: 400px;
width: 400px;
display: table-cell;
text-align: center;
vertical-align: middle;
}
#in_div {
background: yellow;
height: 100px;
width: 100px;
display: inline-block;
}
</style>
<div id="out_div">
<div id="in_div"></div>
</div>
<input id="clearbtn" type="button" value="clear" />
<div id="result">
</div>
<script>
let div = document.getElementById("out_div");
let clearbtn = document.getElementById("clearbtn");
let result = document.getElementById("result");
div.addEventListener("mouseover", (event) => {
result.innerHTML+= `<div>mouseover ${event.target.id}</div>`;
});
div.addEventListener("mouseout", (event) => {
result.innerHTML+= `<div>mouseout ${event.target.id}</div>`;
});
clearbtn.addEventListener("click", (event) => {
result.innerHTML= "";
});
</script>
</body>
</html>
Java
복사