<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div {
width: 100px;
height: 100px;
background-color: green;
margin: 50px auto;
}
/* body {
background-color: red;
margin: 0;
}
.cover {
height: 100%;
} */
</style>
</head>
<boby>
<div></div>
<script src="js/jquery-3.6.0.min.js"></script>
<script>
// div 클릭하면 배경색 red
// 다시 한번 클릭하면 원래 색상으로
var onClick = $("div").on("click", function(){
$(this).css("backgroundColor", "red");
})
console.log(typeof(onClick));
// var reClick = $("div").on("click", function(){
// $(this).css("backgroundColor", "green");
// });
if (onClick == false) {
$("div").on("click", function(){
$(this).css("backgroundColor", "green");
})
}
</script>
</boby>
</html>
Engineering is the closest thing to magic that exists in the world.