这样做的目的是:

function updateQueryString(url, key, value) {
    var arr =  url.split("#");
    var url = arr[0];
    var fragmentId = arr[1];
    var updatedQS = "";
    if (url.indexOf("?") == -1) {
        updatedQS = encodeURIComponent(key) + "=" + encodeURIComponent(value);
    }
    else {
        updatedQS = addOrModifyQS(url.substring(url.indexOf("?") + 1), key, value); 
    }
    url = url.substring(0, url.indexOf("?")) + "?" + updatedQS;
    if (typeof fragmentId !== 'undefined') {
        url = url + "#" + fragmentId;
    }
    return url;
}

function addOrModifyQS(queryStrings, key, value) {
    var oldQueryStrings = queryStrings.split("&");
    var newQueryStrings = new Array();
    var isNewKey = true;
    for (var i in oldQueryStrings) {
        var currItem = oldQueryStrings[i];
        var searchKey = key + "=";
        if (currItem.indexOf(searchKey) != -1) {
            currItem = encodeURIComponent(key) + "=" + encodeURIComponent(value);
            isNewKey = false;
        }
        newQueryStrings.push(currItem);
    }
    if (isNewKey) {
        newQueryStrings.push(encodeURIComponent(key) + "=" + encodeURIComponent(value));
    }
    return newQueryStrings.join("&");
}   

一种不使用正则表达式的不同方法。支持url末尾的“散列”锚以及多个问号字符(?)。应该比正则表达式方法略快。

function setUrlParameter(url, key, value) {
  var parts = url.split("#", 2), anchor = parts.length > 1 ? "#" + parts[1] : '';
  var query = (url = parts[0]).split("?", 2);
  if (query.length === 1) 
    return url + "?" + key + "=" + value + anchor;

  for (var params = query[query.length - 1].split("&"), i = 0; i < params.length; i++)
    if (params[i].toLowerCase().startsWith(key.toLowerCase() + "="))
      return params[i] = key + "=" + value, query[query.length - 1] = params.join("&"), query.join("?") + anchor;

  return url + "&" + key + "=" + value + anchor
}

感谢现代javascript, node.js和浏览器的支持，我们可以摆脱第三方库的漩涡(jquery, query-string等)和DRY自己。

下面是javascript(node.js)和typescript版本的函数，用于添加或更新给定url的查询参数:

Javascript

const getUriWithParam = (baseUrl, params) => { const Url = new URL(baseUrl); const urlParams = new URLSearchParams(Url.search); for (const key in params) { if (params[key] !== undefined) { urlParams.set(key, params[key]); } } Url.search = urlParams.toString(); return Url.toString(); }; console.info('expected: https://example.com/?foo=bar'); console.log(getUriWithParam("https://example.com", {foo: "bar"})); console.info('expected: https://example.com/slug?foo=bar#hash'); console.log(getUriWithParam("https://example.com/slug#hash", {foo: "bar"})); console.info('expected: https://example.com/?bar=baz&foo=bar'); console.log(getUriWithParam("https://example.com?bar=baz", {foo: "bar"})); console.info('expected: https://example.com/?foo=baz&bar=baz'); console.log(getUriWithParam("https://example.com?foo=bar&bar=baz", {foo: "baz"}));

打印稿

const getUriWithParam = (
  baseUrl: string,
  params: Record<string, any>
): string => {
  const Url = new URL(baseUrl);
  const urlParams: URLSearchParams = new URLSearchParams(Url.search);
  for (const key in params) {
    if (params[key] !== undefined) {
      urlParams.set(key, params[key]);
    }
  }
  Url.search = urlParams.toString();
  return Url.toString();
};

对于React Native

URL在React Native中没有实现。所以你必须事先安装react-native-url-polyfill。

对于对象参数

请看这个答案中的第二个解决方案

我想要的是:

使用浏览器的本地URL API 可以添加、更新、获取或删除吗 期望在散列之后的查询字符串，例如对于单页应用程序

function queryParam(options = {}) { var defaults = { method: 'set', url: window.location.href, key: undefined, value: undefined, } for (var prop in defaults) { options[prop] = typeof options[prop] !== 'undefined' ? options[prop] : defaults[prop] } const existing = (options.url.lastIndexOf('?') > options.url.lastIndexOf('#')) ? options.url.substr(options.url.lastIndexOf('?') + 1) : '' const query = new URLSearchParams(existing) if (options.method === 'set') { query.set(options.key, options.value) return `${options.url.replace(`?${existing}`, '')}?${query.toString()}` } else if (options.method === 'get') { const val = query.get(options.key) let result = val === null ? val : val.toString() return result } else if (options.method === 'delete') { query.delete(options.key) let result = `${options.url.replace(`?${existing}`, '')}?${query.toString()}` const lastChar = result.charAt(result.length - 1) if (lastChar === '?') { result = `${options.url.replace(`?${existing}`, '')}` } return result } } // Usage: let url = 'https://example.com/sandbox/#page/' url = queryParam({ url, method: 'set', key: 'my-first-param', value: 'me' }) console.log(url) url = queryParam({ url, method: 'set', key: 'my-second-param', value: 'you' }) console.log(url) url = queryParam({ url, method: 'set', key: 'my-second-param', value: 'whomever' }) console.log(url) url = queryParam({ url, method: 'delete', key: 'my-first-param' }) console.log(url) const mySecondParam = queryParam({ url, method: 'get', key: 'my-second-param', }) console.log(mySecondParam) url = queryParam({ url, method: 'delete', key: 'my-second-param' }) console.log(url)

如果它没有设置或想要更新一个新值，您可以使用:

window.location.search = 'param=value'; // or param=new_value

这是用简单Javascript写的。

EDIT

你可能想尝试使用jquery查询对象插件

窗口.位置.搜索 = jQuery.query.set（“param”， 5）;

给出Gal和tradyblix建议的修改window.location.search的代码示例:

var qs = window.location.search || "?";
var param = key + "=" + value; // remember to URI encode your parameters
if (qs.length > 1) {
    // more than just the question mark, so append with ampersand
    qs = qs + "&";
}
qs = qs + param;
window.location.search = qs;