关于这个问题的顶级答案的问题是，不支持在#后面放置参数，但有时也需要获得这个值。

我修改了答案，让它解析带有哈希符号的完整查询字符串：

var getQueryStringData = function(name) {
    var result = null;
    var regexS = "[\\?&#]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec('?' + window.location.href.split('?')[1]);
    if (results != null) {
        result = decodeURIComponent(results[1].replace(/\+/g, " "));
    }
    return result;
};

我使用这里列出的技术开发了一个小型库，以创建一个易于使用的解决方案；可以在这里找到：

https://github.com/Nijikokun/query-js

用法

正在获取特定参数/密钥：

query.get('param');

使用生成器获取整个对象：

var storage = query.build();
console.log(storage.param);

还有很多。。。查看github链接以获取更多示例。

特征

解码和参数缓存支持哈希查询字符串#hello？第3页支持传递自定义查询支持数组/对象参数user[]=“jim”&user[]=”bob“支持空管理&&支持不带值的声明参数name&hello=“world”支持重复参数param=1&param=2干净、紧凑、可读的源4kbAMD，需要，节点支持

以下是我正在使用的：

/**
 * Examples:
 * getUrlParams()['myparam']    // url defaults to the current page
 * getUrlParams(url)['myparam'] // url can be just a query string
 *
 * Results of calling `getUrlParams(url)['myparam']` with various urls:
 * example.com                               (undefined)
 * example.com?                              (undefined)
 * example.com?myparam                       (empty string)
 * example.com?myparam=                      (empty string)
 * example.com?myparam=0                     (the string '0')
 * example.com?myparam=0&myparam=override    (the string 'override')
 *
 * Origin: http://stackoverflow.com/a/23946023/2407309
 */
function getUrlParams (url) {
    var urlParams = {} // return value
    var queryString = getQueryString()
    if (queryString) {
        var keyValuePairs = queryString.split('&')
        for (var i = 0; i < keyValuePairs.length; i++) {
            var keyValuePair = keyValuePairs[i].split('=')
            var paramName = keyValuePair[0]
            var paramValue = keyValuePair[1] || ''
            urlParams[paramName] = decodeURIComponent(paramValue.replace(/\+/g, ' '))
        }
    }
    return urlParams // functions below
    function getQueryString () {
        var reducedUrl = url || window.location.search
        reducedUrl = reducedUrl.split('#')[0] // Discard fragment identifier.
        var queryString = reducedUrl.split('?')[1]
        if (!queryString) {
            if (reducedUrl.search('=') !== false) { // URL is a query string.
                queryString = reducedUrl
            }
        }
        return queryString
    } // getQueryString
} // getUrlParams

在最后一种情况下，返回“override”而不是“0”使其与PHP一致。在IE7中工作。

从MDN：

function loadPageVar (sVar) {
  return unescape(window.location.search.replace(new RegExp("^(?:.*[&\\?]" + escape(sVar).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1"));
}

alert(loadPageVar("name"));

这是Andy E链接的“句柄数组样式查询字符串”版本的扩展版本。修复了一个错误（？key=1&key[]=2&key[]＝3；1丢失并替换为[2,3]），进行了一些小的性能改进（重新解码值，重新计算“[”位置等），并添加了一些改进（功能化，支持？key=1&key=2，支持；分隔符）。我将变量留得很短，但添加了大量注释以使其可读（哦，我在本地函数中重用了v，如果这令人困惑，很抱歉；）。

它将处理以下查询字符串。。。

?test=Hello&pers=neek&pers[]=jeff&pers[][]=jim&pers[extra]=john&test3&nocache=13989148914891264

…把它做成一个看起来像。。。

{
    "test": "Hello",
    "person": {
        "0": "neek",
        "1": "jeff",
        "2": "jim",
        "length": 3,
        "extra": "john"
    },
    "test3": "",
    "nocache": "1398914891264"
}

如上所述，此版本处理一些“格式错误”数组，即-person=neek&person[]=jeff&person[]=jim或person=neek/person=jeff/person=jim，因为密钥是可识别的和有效的（至少在dotNet的NameValueCollection.Add中）：

如果目标NameValueCollection中已存在指定的键例如，指定的值将添加到现有的逗号分隔的格式为“value1，value2，value3”的值列表。

似乎陪审团对重复的键有点不满意，因为没有规范。在这种情况下，多个键被存储为一个（假）数组。但请注意，我不会将基于逗号的值处理为数组。

代码：

getQueryStringKey = function(key) {
    return getQueryStringAsObject()[key];
};


getQueryStringAsObject = function() {
    var b, cv, e, k, ma, sk, v, r = {},
        d = function (v) { return decodeURIComponent(v).replace(/\+/g, " "); }, //# d(ecode) the v(alue)
        q = window.location.search.substring(1), //# suggested: q = decodeURIComponent(window.location.search.substring(1)),
        s = /([^&;=]+)=?([^&;]*)/g //# original regex that does not allow for ; as a delimiter:   /([^&=]+)=?([^&]*)/g
    ;

    //# ma(make array) out of the v(alue)
    ma = function(v) {
        //# If the passed v(alue) hasn't been setup as an object
        if (typeof v != "object") {
            //# Grab the cv(current value) then setup the v(alue) as an object
            cv = v;
            v = {};
            v.length = 0;

            //# If there was a cv(current value), .push it into the new v(alue)'s array
            //#     NOTE: This may or may not be 100% logical to do... but it's better than loosing the original value
            if (cv) { Array.prototype.push.call(v, cv); }
        }
        return v;
    };

    //# While we still have key-value e(ntries) from the q(uerystring) via the s(earch regex)...
    while (e = s.exec(q)) { //# while((e = s.exec(q)) !== null) {
        //# Collect the open b(racket) location (if any) then set the d(ecoded) v(alue) from the above split key-value e(ntry) 
        b = e[1].indexOf("[");
        v = d(e[2]);

        //# As long as this is NOT a hash[]-style key-value e(ntry)
        if (b < 0) { //# b == "-1"
            //# d(ecode) the simple k(ey)
            k = d(e[1]);

            //# If the k(ey) already exists
            if (r[k]) {
                //# ma(make array) out of the k(ey) then .push the v(alue) into the k(ey)'s array in the r(eturn value)
                r[k] = ma(r[k]);
                Array.prototype.push.call(r[k], v);
            }
            //# Else this is a new k(ey), so just add the k(ey)/v(alue) into the r(eturn value)
            else {
                r[k] = v;
            }
        }
        //# Else we've got ourselves a hash[]-style key-value e(ntry) 
        else {
            //# Collect the d(ecoded) k(ey) and the d(ecoded) sk(sub-key) based on the b(racket) locations
            k = d(e[1].slice(0, b));
            sk = d(e[1].slice(b + 1, e[1].indexOf("]", b)));

            //# ma(make array) out of the k(ey) 
            r[k] = ma(r[k]);

            //# If we have a sk(sub-key), plug the v(alue) into it
            if (sk) { r[k][sk] = v; }
            //# Else .push the v(alue) into the k(ey)'s array
            else { Array.prototype.push.call(r[k], v); }
        }
    }

    //# Return the r(eturn value)
    return r;
};

我在这里做了一个小的URL库来满足我的需求：https://github.com/Mikhus/jsurl

这是一种在JavaScript中操纵URL的更常见的方法。同时，它非常轻量级（缩小和gzip＜1KB），并且具有非常简单和干净的API。而且它不需要任何其他库来工作。

关于最初的问题，很简单：

var u = new Url; // Current document URL
// or
var u = new Url('http://user:pass@example.com:8080/some/path?foo=bar&bar=baz#anchor');

// Looking for query string parameters
alert( u.query.bar);
alert( u.query.foo);

// Modifying query string parameters
u.query.foo = 'bla';
u.query.woo = ['hi', 'hey']

alert(u.query.foo);
alert(u.query.woo);
alert(u);