只需使用split(简单的方法)切割字符串:

var myString = "http://localhost/dms/mduserSecurity/UIL/index.php?menu=true&submenu=true&pcode=1235"
var mySplitResult = myString.split("?");
alert(mySplitResult[0]);

如果您正在使用导航栏，并希望在单击侧栏导航后获得纯url，那么以下代码可能会有帮助:

$(document).ready(function () {
    $("div.sidebar nav a").removeClass("active");
    var urlPath = window.location.pathname.split("?")[0];
    var nav = $('div.sidebar nav a').filter(function () {
        return $(this).attr('href').toLowerCase().indexOf(urlPath.toLocaleLowerCase()) > -1;
    });
    $(nav).each(function () {
        if ($(this).attr("href").toLowerCase() == urlPath.toLocaleLowerCase())
            $(this).addClass('active');
    });
});

这里有两种方法:

<script type="text/javascript">
    var s="http://localhost/dms/mduserSecurity/UIL/index.php?menu=true&submenu
                                =true&pcode=1235";

    var st=s.substring(0, s.indexOf("?"));

    alert(st);

    alert(s.replace(/\?.*/,''));
</script>

使用window.location的属性

var loc = window.location;
var withoutQuery = loc.hostname + loc.pathname;
var includingProtocol = loc.protocol + "//" + loc.hostname + loc.pathname;

您可以在https://developer.mozilla.org/en/DOM/window.location上查看更多属性

只需使用split(简单的方法)切割字符串:

var myString = "http://localhost/dms/mduserSecurity/UIL/index.php?menu=true&submenu=true&pcode=1235"
var mySplitResult = myString.split("?");
alert(mySplitResult[0]);

阅读Window。location和location接口:

const urlPieces = [location.]协议，'//'，位置。主机,location.pathname] let url = urlPieces.join(") console.log ({urlPieces、url})