- filter()
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>예제</title>
<script src="js/jquery.min.js"></script>
<script>
$(document).ready(
function() {
// filter
// eq랑 비슷한 개념
// $("li").filter(".middle").addClass("selected");
// 짝수 번째 인덱스 선택 (실제로는 홀수 번째가 됨)
// $("li").filter(":even").addClass("selected");
// 홀수 번째 인덱스 선택 (실제로는 짝수 번째가 됨)
// $("li").filter(":odd").addClass("selected");
// 가장 첫 번째 요소 선택
$("li").filter(":first").addClass("selected");
}
);
</script>
<style>
.selected {
color: red;
}
</style>
</head>
<body>
<div>
<ul>
<li class="top">list item 1</li>
<li class="top">list item 2</li>
<li class="middle">list item 3</li>
<li class="middle">list item 4</li>
<li class="bottom">list item 5</li>
<li class="bottom">list item 6</li>
</ul>
</div>
</body>
</html>
- find()
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>예제</title>
<script src="js/jquery.min.js"></script>
<script>
$(document).ready(
function() {
// find
// 지정한 요소의 하위 요소에서 탐색
// <p>의 하위 <span>을 찾음
$("p").find("span").addClass("selected");
}
);
</script>
<style>
.selected {
color: red;
}
</style>
</head>
<body>
<p>this is paragraph<br />
<span>this is red</span>
</p>
<p>this is paragraph</p>
<span>this is not red</span>
</body>
</html>
- width()
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>예제</title>
<script src="js/jquery.min.js"></script>
<script>
$(document).ready(
function() {
// width
// css
$("div:first").width(100); // width의 값을 100px로 변경함
$("div:first").css("background-color", "blue"); // 배경 색상을 파란색으로 변경함
}
);
</script>
<style>
div {
width: 70px;
height: 50px;
margin: 5px;
background-color: red;
cursor: pointer;
float: left;
}
</style>
</head>
<body>
<div>my div</div>
<div>my div</div>
<div>my div</div>
<div>my div</div>
<div>my div</div>
</body>
</html>
- replace()
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>예제</title>
<script src="js/jquery.min.js"></script>
<script>
$(document).ready(
function() {
$("div").click(function() {
// <div>를 지정한 태그로 교체함 (text 교체 개념이 아닌 tag 교체 개념)
$(this).replaceWith("<h1><b>JQUERY IS GREAT</b></h1>");
});
}
);
</script>
<style>
#division {
width: 60px;
height: 60px;
margin: 10px;
padding: 12px;
border: 2px solid red;
background-color: blue;
cursor: pointer;
}
</style>
</head>
<body>
<p>click square below</p>
<span id="result">
</span>
<div id="division">
this is blue square
</div>
</body>
</html>
- toggle()
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>예제</title>
<script src="js/jquery.min.js"></script>
<script>
$(document).ready(
function() {
$(".clickme").click(function() {
$(".target").toggle("slow", function() { // hide(), show()가 전환되며 실행됨 (스위치 개념)
$(".log").text("complete!");
});
});
}
);
</script>
<style>
.target {
width: 60px;
height: 60px;
border: 1px solid black;
}
</style>
</head>
<body>
<div class="clickme">click me</div>
<div class="target">target</div>
<div class="log">log</div>
</body>
</html>
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