用文件名

Question

我有一个模板html文件，有几个人使用。他们制作副本然后重新编辑它。我试图在模板文件中放入一些内联js，以便title标签的innerHTML自动填充文件名。这就是我所拥有的。效果很好。唯一的问题是我不想包含文件扩展名。没有多行代码的任何简单方法来摆脱文件扩展名？

<title id="title">This is replaced by the name of the file</title>
<script type="text/javascript">
    var url = window.location.pathname;
    document.getElementById("title").innerHTML = url.substring(url.lastIndexOf('/')+1);
</script>

这解决了我的问题。只是想知道是否有更简单的方法来做到这一点：

<title id="title">This is replaced by the filename</title>
<script type="text/javascript">
    var url = window.location.pathname; // gets the pathname of the file
    var str = url.substring(url.lastIndexOf('/')+1); // removes everything before the filename
    str = str.substring(0, str.length - 5); // removes the extension
    var filename = str.replace(/%20/g, " "); // if the filename has multiple words separated by spaces, browsers do not like that and replace each space with a %20. This replace %20 with a space.
    document.getElementById("title").innerHTML = filename;
</script>