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)

下面是我的方法:location.params()函数(如下所示)可以用作getter或setter。例子:

假设URL是http://example.com/?foo=bar&baz#some-hash，

Location.params()将返回一个包含所有查询参数的对象:{foo: 'bar'， baz: true}。 Location.params ('foo')将返回'bar'。 的位置。params({foo: undefined, hello: 'world'， test: true})会将URL更改为http://example.com/?baz&hello=world&test#some-hash。

下面是params()函数，它可以被选择性地分配给窗口。位置的对象。

location.params = function(params) {
  var obj = {}, i, parts, len, key, value;

  if (typeof params === 'string') {
    value = location.search.match(new RegExp('[?&]' + params + '=?([^&]*)[&#$]?'));
    return value ? value[1] : undefined;
  }

  var _params = location.search.substr(1).split('&');

  for (i = 0, len = _params.length; i < len; i++) {
    parts = _params[i].split('=');
    if (! parts[0]) {continue;}
    obj[parts[0]] = parts[1] || true;
  }

  if (typeof params !== 'object') {return obj;}

  for (key in params) {
    value = params[key];
    if (typeof value === 'undefined') {
      delete obj[key];
    } else {
      obj[key] = value;
    }
  }

  parts = [];
  for (key in obj) {
    parts.push(key + (obj[key] === true ? '' : '=' + obj[key]));
  }

  location.search = parts.join('&');
};

下面是我对此略有不同的方法，作为练习写的

function addOrChangeParameters( url, params )
{
  let splitParams = {};
  let splitPath = (/(.*)[?](.*)/).exec(url);
  if ( splitPath && splitPath[2] )
    splitPath[2].split("&").forEach( k => { let d = k.split("="); splitParams[d[0]] = d[1]; } );
  let newParams = Object.assign( splitParams, params );
  let finalParams = Object.keys(newParams).map( (a) => a+"="+newParams[a] ).join("&");
  return splitPath ? (splitPath[1] + "?" + finalParams) : (url + "?" + finalParams);
}

用法:

const url = "http://testing.com/path?empty&value1=test&id=3";

addOrChangeParameters( url, {value1:1, empty:"empty", new:0} )

"http://testing.com/path?empty=empty&value1=1&id=3&new=0"

在这个页面上有很多尴尬和不必要的复杂答案。评分最高的@amateur's相当不错，尽管它在RegExp中有一些不必要的错误。下面是一个稍微更优的解决方案，使用了更清洁的RegExp和更清洁的replace调用:

function updateQueryStringParamsNoHash(uri, key, value) {
  var re = new RegExp("([?&])" + key + "=[^&]*", "i");
  return re.test(uri)
       ? uri.replace(re, '$1' + key + "=" + value)
       : uri + separator + key + "=" + value
  ;
}

作为一个额外的好处，如果uri不是一个字符串，你不会得到错误，试图调用match或replace的东西可能没有实现这些方法。

如果你想处理散列的情况(并且你已经检查了正确格式化的HTML)，你可以利用现有的函数，而不是写一个包含相同逻辑的新函数:

function updateQueryStringParams(url, key, value) {
    var splitURL = url.split('#');
    var hash = splitURL[1];
    var uri = updateQueryStringParamsNoHash(splitURL[0]);
    return hash == null ? uri : uri + '#' + hash;
}

或者你可以对@Adam的精彩回答做一些小小的修改:

function updateQueryStringParameter(uri, key, value) {
  var re = new RegExp("([?&])" + key + "=[^&#]*", "i");
  if (re.test(uri)) {
    return uri.replace(re, '$1' + key + "=" + value);
  } else {
    var matchData = uri.match(/^([^#]*)(#.*)?$/);
    var separator = /\?/.test(uri) ? "&" : "?";    
    return matchData[0] + separator + key + "=" + value + (matchData[1] || '');
  }
}

使用ES6和jQuery将参数列表追加到现有url的代码:

class UrlBuilder {
    static appendParametersToUrl(baseUrl, listOfParams) {

        if (jQuery.isEmptyObject(listOfParams)) {
            return baseUrl;
        }

        const newParams = jQuery.param(listOfParams);

        let partsWithHash = baseUrl.split('#');
        let partsWithParams = partsWithHash[0].split('?');

        let previousParams = '?' + ((partsWithParams.length === 2) ? partsWithParams[1] + '&' : '');
        let previousHash = (partsWithHash.length === 2) ? '#' + partsWithHash[1] : '';

        return partsWithParams[0] + previousParams + newParams + previousHash;
    }
}

listOfParams是什么样的

const listOfParams = {
    'name_1': 'value_1',
    'name_2': 'value_2',
    'name_N': 'value_N',
};

用法示例:

    UrlBuilder.appendParametersToUrl(urlBase, listOfParams);

快速测试:

    url = 'http://hello.world';
    console.log('=> ', UrlParameters.appendParametersToUrl(url, null));
    // Output:  http://hello.world

    url = 'http://hello.world#h1';
    console.log('=> ', UrlParameters.appendParametersToUrl(url, null));
    // Output:  http://hello.world#h1

    url = 'http://hello.world';
    params = {'p1': 'v1', 'p2': 'v2'};
    console.log('=> ', UrlParameters.appendParametersToUrl(url, params));
    // Output: http://hello.world?p1=v1&p2=v2

    url = 'http://hello.world?p0=v0';
    params = {'p1': 'v1', 'p2': 'v2'};
    console.log('=> ', UrlParameters.appendParametersToUrl(url, params));
    // Output: http://hello.world?p0=v0&p1=v1&p2=v2

    url = 'http://hello.world#h1';
    params = {'p1': 'v1', 'p2': 'v2'};
    console.log('=> ', UrlParameters.appendParametersToUrl(url, params));
   // Output: http://hello.world?p1=v1&p2=v2#h1

    url = 'http://hello.world?p0=v0#h1';
    params = {'p1': 'v1', 'p2': 'v2'};
    console.log('=> ', UrlParameters.appendParametersToUrl(url, params));
    // Output: http://hello.world?p0=v0&p1=v1&p2=v2#h1

我写了下面的函数来实现我想要实现的:

function updateQueryStringParameter(uri, key, value) {
  var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i");
  var separator = uri.indexOf('?') !== -1 ? "&" : "?";
  if (uri.match(re)) {
    return uri.replace(re, '$1' + key + "=" + value + '$2');
  }
  else {
    return uri + separator + key + "=" + value;
  }
}