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  • js、jq控制class相同当子元素为空时,父元素隐藏

    <!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Document</title>
        <script src="js/jquery.js"></script>
        <style>
            body {
                background: #272727;
                color: #ddd;
                font-family: "open sans", sans-serif;
                font-size: 13px;
                line-height: 1.5;
                margin: 0;
            }
            
            .product-info {
                background: #474747;
                margin: 0 auto 40px;
                padding: 20px;
                width: 800px;
            }
            
            .title {
                font-size: 26px;
                font-weight: 700;
            }
            
            .title h2 {
                line-height: 1;
                margin: 0 0 20px;
            }
        </style>
    </head>
    
    <body>
        <div class="product-info prod-spacer">
            <div class="title">
                <h2>This is a Title 1</h2>
            </div>
            <div class="content">
                Remove This Text To See How It Works!!
            </div>
        </div>
    
        <div class="product-info prod-spacer">
            <div class="title">
                <h2></h2>
            </div>
            <div class="content">
                lk;l
            </div>
        </div>
    
        <div class="product-info prod-spacer">
            <div class="title">
                <h2>This is a Title 3</h2>
            </div>
            <div class="content">
                Remove This Text To See How It Works!!
            </div>
        </div>
    </body>
    <script>
        // var $j = jQuery;
        $(function() {
            $('.product-info .title h2').each(function(i) {
                console.log(i)
                if (!$.trim($(this).text()).length) $('.product-info').eq(i).hide();
            })
        });
    </script>
    
    </html>
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  • 原文地址:https://www.cnblogs.com/520yh/p/13563738.html
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