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  • 将HTML格式的String转化为HTMLElement

    代码如下:

    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    <div id="content"></div>
    <script>
    var el = document.createElement("div");
    el.innerHTML = ' <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>titleValue</title> <meta name="description" content="It is a good way to learn science." /> <meta name="keywords" content="Symfony2,Redis,PHP" /> <meta name="author" content="CSDN.NET" /> <meta name="Copyright" content="CSDN.NET" /> </head> <body> hello</body> </html>';
    var descElements = el.getElementsByTagName("head");
    document.getElementById("content").innerHTML = descElements.length;
    </script>
    </body>
    </html>


    1、若将script放到head元素中,则加载脚本时,尚未加载div元素,此时会出现“document.getElementById(...) 为空或者不是对象”。
    2、以上代码在chrome中正常支行,输出结果为5,但在IE中输出结果为0.
    3、注意在js中定义数据不需要使用[],否则会出错。



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  • 原文地址:https://www.cnblogs.com/eaglegeek/p/4557868.html
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