一个内衬和IE11友好：

> (window.location.href).match('c=([^&]*)')[1]
> "m2-m3-m4-m5"

$_GET: function (param) {
    var regex = new RegExp("(?:[?&]+" + param + "=)([^&]*)?", "i");
    var match = regex.exec(window.location.href);
    return match === null ? match : match[1];
}

以下是我所做的：

var uriParams = getSearchParameters();
alert(uriParams.c);


// background functions:

// Get object/associative array of URL parameters
function getSearchParameters () {
  var prmstr = window.location.search.substr(1);
  return prmstr !== null && prmstr !== "" ? transformToAssocArray(prmstr) : {};
}

// convert parameters from url-style string to associative array
function transformToAssocArray (prmstr) {
  var params = {},
      prmarr = prmstr.split("&");

  for (var i = 0; i < prmarr.length; i++) {
    var tmparr = prmarr[i].split("=");
    params[tmparr[0]] = tmparr[1];
  }
  return params;
}

这是一种只检查一个参数的简单方法：

示例URL:

http://myserver/action?myParam=2

Javascript示例：

var myParam = location.search.split('myParam=')[1]

如果URL中存在“myParam”。。。变量myParam将包含“2”，否则将未定义。

在这种情况下，可能需要一个默认值：

var myParam = location.search.split('myParam=')[1] ? location.search.split('myParam=')[1] : 'myDefaultValue';

更新：这更有效：

var url = "http://www.example.com/index.php?myParam=384&login=admin"; // or window.location.href for current url
var captured = /myParam=([^&]+)/.exec(url)[1]; // Value is in [1] ('384' in our case)
var result = captured ? captured : 'myDefaultValue';

即使URL中充满了参数，它也能正常工作。

// http:localhost:8080/path?param_1=a&param_2=b
var getParamsMap = function () {
    var params = window.location.search.split("&");
    var paramsMap = {};
    params.forEach(function (p) {
        var v = p.split("=");
        paramsMap[v[0]]=decodeURIComponent(v[1]);
    });
    return paramsMap;
};

// -----------------------

console.log(getParamsMap()["param_1"]);  // should log "a"     

以json形式从window.location中的搜索对象中提取所有url参数

export const getURLParams = location => {
    const searchParams = new URLSearchParams(location.search)
    const params = {}

    for (let key of searchParams.keys()) {
        params[key] = searchParams.get(key)
    }

    return params
}

console.log(getURLParams({ search: '?query=someting&anotherquery=anotherthing' }))

// --> {query: "someting", anotherquery: "anotherthing"}