获取URL中某个参数的值

Posted 2020-10-23 微醺

JS代码：

function getQueryString(name){
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)",‘i‘);
    var res = window.location.search.substr(1).match(reg);
    if(res[2]){
       return res[2];
    }else{
        return null;
    }
}

调用样例：

var userName = getQueryString(‘userName‘);