javascript - knowing the url of a script inside the script

Question

So I have a script that is loaded dynamically into the page as so:

<div>
    <script>
        var url = 'http://example.com/scripts/myscript.js?foo=bar';
        document.write('<scr'+'ipt type=\"text/javascript\" src=\""+url+"\"></scri'+'pt>')
    </script>;
</div>

I need to know, if there is a way, inside the myscript.js i am loading, to access the url to get the query string.

Thanks

Answer 1

当脚本运行时（除非您添加defer或async属性），它始终是页面上的最后一个元素。因此，您可以利用这一事实：

var scripts = document.getElementsByTagName('script'),
    currentScript = scripts[scripts.length-1],
    myScriptURL = currentScript.getAttribute("src");

然后，您可以处理该myScriptURL变量以提取查询字符串参数，如本问题所示。