[jQuery] hasClass, toggleClass - on off 버튼 선택, 해제

jQuery
[jQuery] hasClass, toggleClass - on off 버튼 선택, 해제

힘없는염소 2015. 5. 15. 12:56
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<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="utf-8">
<style>
    ul {
        width: 200px;
    }
    
    li {
        border:1px solid #000;
        background: skyblue;
        margin: 2px 0 0 0;
    }
 
    li.on {
        background: hotpink;
    }            
</style>
</head>
<body>
 
    <ul>
        <li class="btnAll">전체선택</li>
        <li class="btn">선택1</li>
        <li class="btn">선택2</li>
        <li class="btn">선택3</li>
        <li class="btn">선택4</li>
        <li class="btn">선택5</li>
    </ul>
        
    <script src="js/jquery.js"></script>
    <script>
 
        var size;
 
        $('.btnAll').click(function() {
 
            $(this).toggleClass('on');
 
            if($(this).hasClass('on')) {
                $('.btn').addClass('on');
            } else {
                $('.btn').removeClass('on');
            }
        });
 
        $('.btn').click(function() {
 
            $(this).toggleClass('on');
            size = $('.btn.on').size();
 
            if(size == $('.btn').size()) {
                $('.btnAll').addClass('on');
            } else {
                $('.btnAll').removeClass('on');
            }
        });    
 
    </script>
            
</body>
</html>
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