Saya ingin mengambil string

var a = "http://example.com/aa/bb/"

dan mengolahnya menjadi objek sedemikian rupa

a.hostname == "example.com"

dan

a.pathname == "/aa/bb"

Cara modern:

new URL("http://example.com/aa/bb/")

Mengembalikan objek dengan properti hostnamedan pathname, bersama dengan beberapa lainnya .

Argumen pertama adalah URL relatif atau absolut; jika itu relatif, maka Anda perlu menentukan argumen kedua (URL dasar). Misalnya, untuk URL relatif ke halaman saat ini:

new URL("/aa/bb/", location)

Selain browser, API ini juga tersedia di Node.js sejak v7, hingga require('url').URL.

var getLocation = function(href) {
    var l = document.createElement("a");
    l.href = href;
    return l;
};
var l = getLocation("http://example.com/path");
console.debug(l.hostname)
>> "example.com"
console.debug(l.pathname)
>> "/path"

ditemukan di sini: https://gist.github.com/jlong/2428561

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";

parser.protocol; // => "http:"
parser.host;     // => "example.com:3000"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.hash;     // => "#hash"
parser.search;   // => "?search=test"
parser.origin;   // => "http://example.com:3000"

Berikut adalah fungsi sederhana menggunakan regexp yang meniru aperilaku tag.

Pro

• perilaku yang dapat diprediksi (tidak ada masalah lintas browser)
• tidak perlu DOM
• ini sangat singkat.

Cons

• Regexp agak sulit dibaca

-

function getLocation(href) {
    var match = href.match(/^(https?\:)\/\/(([^:\/?#]*)(?:\:([0-9]+))?)([\/]{0,1}[^?#]*)(\?[^#]*|)(#.*|)$/);
    return match && {
        href: href,
        protocol: match[1],
        host: match[2],
        hostname: match[3],
        port: match[4],
        pathname: match[5],
        search: match[6],
        hash: match[7]
    }
}

-

getLocation("http://example.com/");
/*
{
    "protocol": "http:",
    "host": "example.com",
    "hostname": "example.com",
    "port": undefined,
    "pathname": "/"
    "search": "",
    "hash": "",
}
*/

getLocation("http://example.com:3000/pathname/?search=test#hash");
/*
{
    "protocol": "http:",
    "host": "example.com:3000",
    "hostname": "example.com",
    "port": "3000",
    "pathname": "/pathname/",
    "search": "?search=test",
    "hash": "#hash"
}
*/

EDIT:

Berikut ini rincian ekspresi reguler

var reURLInformation = new RegExp([
    '^(https?:)//', // protocol
    '(([^:/?#]*)(?::([0-9]+))?)', // host (hostname and port)
    '(/{0,1}[^?#]*)', // pathname
    '(\\?[^#]*|)', // search
    '(#.*|)$' // hash
].join(''));
var match = href.match(reURLInformation);

var loc = window.location;  // => "http://example.com:3000/pathname/?search=test#hash"

mengembalikan currentUrl.

Jika Anda ingin meneruskan string Anda sebagai url ( tidak berfungsi di IE11 ):

var loc = new URL("http://example.com:3000/pathname/?search=test#hash")

Maka Anda dapat menguraikannya seperti:

loc.protocol; // => "http:"
loc.host;     // => "example.com:3000"
loc.hostname; // => "example.com"
loc.port;     // => "3000"
loc.pathname; // => "/pathname/"
loc.hash;     // => "#hash"
loc.search;   // => "?search=test"

Jawaban freddiefujiwara cukup bagus tetapi saya juga perlu mendukung URL relatif dalam Internet Explorer. Saya datang dengan solusi berikut:

function getLocation(href) {
    var location = document.createElement("a");
    location.href = href;
    // IE doesn't populate all link properties when setting .href with a relative URL,
    // however .href will return an absolute URL which then can be used on itself
    // to populate these additional fields.
    if (location.host == "") {
      location.href = location.href;
    }
    return location;
};

Sekarang gunakan untuk mendapatkan properti yang dibutuhkan:

var a = getLocation('http://example.com/aa/bb/');
document.write(a.hostname);
document.write(a.pathname);

Contoh JSFiddle: http://jsfiddle.net/6AEAB/

js-uri (tersedia di Google Code) mengambil URL string dan menyelesaikan objek URI darinya:

var some_uri = new URI("http://www.example.com/foo/bar");

alert(some_uri.authority); // www.example.com
alert(some_uri);           // http://www.example.com/foo/bar

var blah      = new URI("blah");
var blah_full = blah.resolve(some_uri);
alert(blah_full);         // http://www.example.com/foo/blah

Bagaimana dengan ekspresi reguler sederhana?

url = "http://www.example.com/path/to/somwhere";
urlParts = /^(?:\w+\:\/\/)?([^\/]+)(.*)$/.exec(url);
hostname = urlParts[1]; // www.example.com
path = urlParts[2]; // /path/to/somwhere

hari ini saya menemukan masalah ini dan saya menemukan: URL - MDN Web APIs

var url = new URL("http://test.example.com/dir/subdir/file.html#hash");

Pengembalian ini:

{ hash:"#hash", host:"test.example.com", hostname:"test.example.com", href:"http://test.example.com/dir/subdir/file.html#hash", origin:"http://test.example.com", password:"", pathname:"/dir/subdir/file.html", port:"", protocol:"http:", search: "", username: "" }

Berharap kontribusi pertama saya membantu Anda!

Ini adalah versi yang saya salin dari https://gist.github.com/1847816 , tetapi ditulis ulang sehingga lebih mudah untuk dibaca dan didebug. Tujuan menyalin data jangkar ke variabel lain bernama "hasil" adalah karena data jangkar cukup panjang, dan dengan demikian menyalin sejumlah nilai ke hasil akan membantu menyederhanakan hasil.

/**
 * See: https://gist.github.com/1847816
 * Parse a URI, returning an object similar to Location
 * Usage: var uri = parseUri("hello?search#hash")
 */
function parseUri(url) {

  var result = {};

  var anchor = document.createElement('a');
  anchor.href = url;

  var keys = 'protocol hostname host pathname port search hash href'.split(' ');
  for (var keyIndex in keys) {
    var currentKey = keys[keyIndex]; 
    result[currentKey] = anchor[currentKey];
  }

  result.toString = function() { return anchor.href; };
  result.requestUri = result.pathname + result.search;  
  return result;

}

Penguraian URL lintas-browser , bekerja di sekitar masalah jalur relatif untuk IE 6, 7, 8 dan 9:

function ParsedUrl(url) {
    var parser = document.createElement("a");
    parser.href = url;

    // IE 8 and 9 dont load the attributes "protocol" and "host" in case the source URL
    // is just a pathname, that is, "/example" and not "http://domain.com/example".
    parser.href = parser.href;

    // IE 7 and 6 wont load "protocol" and "host" even with the above workaround,
    // so we take the protocol/host from window.location and place them manually
    if (parser.host === "") {
        var newProtocolAndHost = window.location.protocol + "//" + window.location.host;
        if (url.charAt(1) === "/") {
            parser.href = newProtocolAndHost + url;
        } else {
            // the regex gets everything up to the last "/"
            // /path/takesEverythingUpToAndIncludingTheLastForwardSlash/thisIsIgnored
            // "/" is inserted before because IE takes it of from pathname
            var currentFolder = ("/"+parser.pathname).match(/.*\//)[0];
            parser.href = newProtocolAndHost + currentFolder + url;
        }
    }

    // copies all the properties to this object
    var properties = ['host', 'hostname', 'hash', 'href', 'port', 'protocol', 'search'];
    for (var i = 0, n = properties.length; i < n; i++) {
      this[properties[i]] = parser[properties[i]];
    }

    // pathname is special because IE takes the "/" of the starting of pathname
    this.pathname = (parser.pathname.charAt(0) !== "/" ? "/" : "") + parser.pathname;
}

Penggunaan ( demo JSFiddle di sini ):

var myUrl = new ParsedUrl("http://www.example.com:8080/path?query=123#fragment");

Hasil:

{
    hash: "#fragment"
    host: "www.example.com:8080"
    hostname: "www.example.com"
    href: "http://www.example.com:8080/path?query=123#fragment"
    pathname: "/path"
    port: "8080"
    protocol: "http:"
    search: "?query=123"
}

Bagi mereka yang mencari solusi modern yang berfungsi di IE, Firefox, DAN Chrome:

Tidak satu pun dari solusi ini yang menggunakan elemen hyperlink akan berfungsi sama di chrome.Jika Anda memberikan url yang tidak valid (atau kosong) ke chrome, itu akan selalu mengembalikan host tempat skrip dipanggil. Jadi di IE Anda akan mendapatkan kosong, sedangkan di Chrome Anda akan mendapatkan localhost (atau apa pun).

Jika Anda mencoba melihat pengarah, ini menipu. Anda harus memastikan bahwa host yang Anda dapatkan ada di url asli untuk menangani ini:

    function getHostNameFromUrl(url) {
        // <summary>Parses the domain/host from a given url.</summary>
        var a = document.createElement("a");
        a.href = url;

        // Handle chrome which will default to domain where script is called from if invalid
        return url.indexOf(a.hostname) != -1 ? a.hostname : '';
    }

Cara AngularJS - biola di sini: http://jsfiddle.net/PT5BG/4/

<!DOCTYPE html>
<html>
<head>
    <title>Parse URL using AngularJS</title>
</head>
<body ng-app ng-controller="AppCtrl" ng-init="init()">

<h3>Parse URL using AngularJS</h3>

url: <input type="text" ng-model="url" value="" style="width:780px;">

<ul>
    <li>href = {{parser.href}}</li>
    <li>protocol = {{parser.protocol}}</li>
    <li>host = {{parser.host}}</li>
    <li>hostname = {{parser.hostname}}</li>
    <li>port = {{parser.port}}</li>
    <li>pathname = {{parser.pathname}}</li>
    <li>hash = {{parser.hash}}</li>
    <li>search = {{parser.search}}</li>
</ul>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"></script>

<script>
function AppCtrl($scope) {

    $scope.$watch('url', function() {
        $scope.parser.href = $scope.url;
    });

    $scope.init = function() {
        $scope.parser = document.createElement('a');
        $scope.url = window.location;
    }

}
</script>

</body>
</html>

Solusi sederhana dan kuat menggunakan pola modul. Ini termasuk perbaikan untuk IE di mana pathnametidak selalu memiliki forward-slash ( /).

Saya telah membuat Gist bersama dengan JSFiddle yang menawarkan parser yang lebih dinamis. Saya sarankan Anda memeriksanya dan memberikan umpan balik.

var URLParser = (function (document) {
    var PROPS = 'protocol hostname host pathname port search hash href'.split(' ');
    var self = function (url) {
        this.aEl = document.createElement('a');
        this.parse(url);
    };
    self.prototype.parse = function (url) {
        this.aEl.href = url;
        if (this.aEl.host == "") {
           this.aEl.href = this.aEl.href;
        }
        PROPS.forEach(function (prop) {
            switch (prop) {
                case 'hash':
                    this[prop] = this.aEl[prop].substr(1);
                    break;
                default:
                    this[prop] = this.aEl[prop];
            }
        }, this);
        if (this.pathname.indexOf('/') !== 0) {
            this.pathname = '/' + this.pathname;
        }
        this.requestUri = this.pathname + this.search;
    };
    self.prototype.toObj = function () {
        var obj = {};
        PROPS.forEach(function (prop) {
            obj[prop] = this[prop];
        }, this);
        obj.requestUri = this.requestUri;
        return obj;
    };
    self.prototype.toString = function () {
        return this.href;
    };
    return self;
})(document);

Demo

var URLParser = (function(document) {
  var PROPS = 'protocol hostname host pathname port search hash href'.split(' ');
  var self = function(url) {
    this.aEl = document.createElement('a');
    this.parse(url);
  };
  self.prototype.parse = function(url) {
    this.aEl.href = url;
    if (this.aEl.host == "") {
      this.aEl.href = this.aEl.href;
    }
    PROPS.forEach(function(prop) {
      switch (prop) {
        case 'hash':
          this[prop] = this.aEl[prop].substr(1);
          break;
        default:
          this[prop] = this.aEl[prop];
      }
    }, this);
    if (this.pathname.indexOf('/') !== 0) {
      this.pathname = '/' + this.pathname;
    }
    this.requestUri = this.pathname + this.search;
  };
  self.prototype.toObj = function() {
    var obj = {};
    PROPS.forEach(function(prop) {
      obj[prop] = this[prop];
    }, this);
    obj.requestUri = this.requestUri;
    return obj;
  };
  self.prototype.toString = function() {
    return this.href;
  };
  return self;
})(document);

/* Main */
var out = document.getElementById('out');
var urls = [
  'https://www.example.org:5887/foo/bar?a=1&b=2#section-1',
  'ftp://www.files.com:22/folder?id=7'
];
var parser = new URLParser();
urls.forEach(function(url) {
  parser.parse(url);
  println(out, JSON.stringify(parser.toObj(), undefined, ' '), 0, '#0000A7');
});

/* Utility functions */
function print(el, text, bgColor, fgColor) {
  var span = document.createElement('span');
  span.innerHTML = text;
  span.style['backgroundColor'] = bgColor || '#FFFFFF';
  span.style['color'] = fgColor || '#000000';
  el.appendChild(span);
}
function println(el, text, bgColor, fgColor) {
  print(el, text, bgColor, fgColor);
  el.appendChild(document.createElement('br'));
}

body {
  background: #444;
}
span {
  background-color: #fff;
  border: thin solid black;
  display: inline-block;
}
#out {
  display: block;
  font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, serif;
  font-size: 12px;
  white-space: pre;
}

<div id="out"></div>

Keluaran

{
 "protocol": "https:",
 "hostname": "www.example.org",
 "host": "www.example.org:5887",
 "pathname": "/foo/bar",
 "port": "5887",
 "search": "?a=1&b=2",
 "hash": "section-1",
 "href": "https://www.example.org:5887/foo/bar?a=1&b=2#section-1",
 "requestUri": "/foo/bar?a=1&b=2"
}
{
 "protocol": "ftp:",
 "hostname": "www.files.com",
 "host": "www.files.com:22",
 "pathname": "/folder",
 "port": "22",
 "search": "?id=7",
 "hash": "",
 "href": "ftp://www.files.com:22/folder?id=7",
 "requestUri": "/folder?id=7"
}

Gunakan https://www.npmjs.com/package/uri-parse-lib untuk ini

var t = parserURI("http://user:pass@example.com:8080/directory/file.ext?query=1&next=4&sed=5#anchor");

Kenapa tidak menggunakannya?

        $scope.get_location=function(url_str){
        var parser = document.createElement('a');
        parser.href =url_str;//"http://example.com:3000/pathname/?search=test#hash";
        var info={
            protocol:parser.protocol,   
            hostname:parser.hostname, // => "example.com"
            port:parser.port,     // => "3000"
            pathname:parser.pathname, // => "/pathname/"
            search:parser.search,   // => "?search=test"
            hash:parser.hash,     // => "#hash"
            host:parser.host, // => "example.com:3000"      
        }
        return info;
    }
    alert( JSON.stringify( $scope.get_location("http://localhost:257/index.php/deploy/?asd=asd#asd"),null,4 ) );

Anda juga dapat menggunakan parse_url()fungsi dari Locutus proyek (mantan php.js).

Kode:

parse_url('http://username:password@hostname/path?arg=value#anchor');

Hasil:

{
  scheme: 'http',
  host: 'hostname',
  user: 'username',
  pass: 'password',
  path: '/path',
  query: 'arg=value',
  fragment: 'anchor'
}

function parseUrl(url) {
    var m = url.match(/^(([^:\/?#]+:)?(?:\/\/((?:([^\/?#:]*):([^\/?#:]*)@)?([^\/?#:]*)(?::([^\/?#:]*))?)))?([^?#]*)(\?[^#]*)?(#.*)?$/),
        r = {
            hash: m[10] || "",                   // #asd
            host: m[3] || "",                    // localhost:257
            hostname: m[6] || "",                // localhost
            href: m[0] || "",                    // http://username:password@localhost:257/deploy/?asd=asd#asd
            origin: m[1] || "",                  // http://username:password@localhost:257
            pathname: m[8] || (m[1] ? "/" : ""), // /deploy/
            port: m[7] || "",                    // 257
            protocol: m[2] || "",                // http:
            search: m[9] || "",                  // ?asd=asd
            username: m[4] || "",                // username
            password: m[5] || ""                 // password
        };
    if (r.protocol.length == 2) {
        r.protocol = "file:///" + r.protocol.toUpperCase();
        r.origin = r.protocol + "//" + r.host;
    }
    r.href = r.origin + r.pathname + r.search + r.hash;
    return m && r;
};
parseUrl("http://username:password@localhost:257/deploy/?asd=asd#asd");

Ia berfungsi dengan url absolut dan relatif

Berhenti menciptakan kembali roda. Gunakan https://github.com/medialize/URI.js/

var uri = new URI("http://example.org:80/foo/hello.html");
// get host
uri.host(); // returns string "example.org:80"
// set host
uri.host("example.org:80");

Cukup gunakan pustaka url.js (untuk web dan node.js).

https://github.com/websanova/js-url

url: http://example.com?param=test#param=again

url('?param'); // test
url('#param'); // again
url('protocol'); // http
url('port'); // 80
url('domain'); // example.com
url('tld'); // com

etc...

hack sederhana dengan jawaban pertama

var getLocation = function(href=window.location.href) {
    var l = document.createElement("a");
    l.href = href;
    return l;
};

ini dapat digunakan bahkan tanpa argumen untuk mengetahui getLocation nama host saat ini (). nama host akan memberikan nama host saat ini