Browser-compatible `URL` class, implemented by following the WHATWG URL Standard. Examples of parsed URLs may be found in the Standard itself. The `URL` class is also available on the global object.

In accordance with browser conventions, all properties of `URL` objects are implemented as getters and setters on the class prototype, rather than as data properties on the object itself. Thus, unlike `legacy urlObject` s, using the `delete` keyword on any properties of `URL` objects (e.g. `delete myURL.protocol`, `delete myURL.pathname`, etc) has no effect but will still return `true`.

since

  v7.0.0, v6.13.0

### Hierarchy

- URL

## Index

### Constructors

- constructor

### Properties

- hash
- host
- hostname
- href
- origin
- password
- pathname
- port
- protocol
- search
- searchParams
- username

### Methods

- toJSON
- toString
- createObjectURL
- revokeObjectURL

## Constructors

### constructor

- new URL(input: string, base?: string | URL): URL

- #### Parameters

  - ##### input: string

  - ##### Optional base: string | URL

  #### Returns URL

## Properties

### hash

hash: string

Gets and sets the fragment portion of the URL.

    const myURL = new URL('https://example.org/foo#bar');
    console.log(myURL.hash);
    // Prints #bar

    myURL.hash = 'baz';
    console.log(myURL.href);
    // Prints https://example.org/foo#baz

Invalid URL characters included in the value assigned to the `hash` property are `percent-encoded`. The selection of which characters to percent-encode may vary somewhat from what the {@link parse} and format methods would produce.

### host

host: string

Gets and sets the host portion of the URL.

    const myURL = new URL('https://example.org:81/foo');
    console.log(myURL.host);
    // Prints example.org:81

    myURL.host = 'example.com:82';
    console.log(myURL.href);
    // Prints https://example.com:82/foo

Invalid host values assigned to the `host` property are ignored.

### hostname

hostname: string

Gets and sets the host name portion of the URL. The key difference between`url.host` and `url.hostname` is that `url.hostname` does not include the port.

    const myURL = new URL('https://example.org:81/foo');
    console.log(myURL.hostname);
    // Prints example.org

    // Setting the hostname does not change the port
    myURL.hostname = 'example.com:82';
    console.log(myURL.href);
    // Prints https://example.com:81/foo

    // Use myURL.host to change the hostname and port
    myURL.host = 'example.org:82';
    console.log(myURL.href);
    // Prints https://example.org:82/foo

Invalid host name values assigned to the `hostname` property are ignored.

### href

href: string

Gets and sets the serialized URL.

    const myURL = new URL('https://example.org/foo');
    console.log(myURL.href);
    // Prints https://example.org/foo

    myURL.href = 'https://example.com/bar';
    console.log(myURL.href);
    // Prints https://example.com/bar

Getting the value of the `href` property is equivalent to calling toString.

Setting the value of this property to a new value is equivalent to creating a new `URL` object using `new URL(value)`. Each of the `URL`object's properties will be modified.

If the value assigned to the `href` property is not a valid URL, a `TypeError`will be thrown.

### Readonly origin

origin: string

Gets the read-only serialization of the URL's origin.

    const myURL = new URL('https://example.org/foo/bar?baz');
    console.log(myURL.origin);
    // Prints https://example.org

    const idnURL = new URL('https://測試');
    console.log(idnURL.origin);
    // Prints https://xn--g6w251d

    console.log(idnURL.hostname);
    // Prints xn--g6w251d

### password

password: string

Gets and sets the password portion of the URL.

    const myURL = new URL('https://abc:xyz@example.com');
    console.log(myURL.password);
    // Prints xyz

    myURL.password = '123';
    console.log(myURL.href);
    // Prints https://abc:123@example.com

Invalid URL characters included in the value assigned to the `password` property are `percent-encoded`. The selection of which characters to percent-encode may vary somewhat from what the {@link parse} and format methods would produce.

### pathname

pathname: string

Gets and sets the path portion of the URL.

    const myURL = new URL('https://example.org/abc/xyz?123');
    console.log(myURL.pathname);
    // Prints /abc/xyz

    myURL.pathname = '/abcdef';
    console.log(myURL.href);
    // Prints https://example.org/abcdef?123

Invalid URL characters included in the value assigned to the `pathname`property are `percent-encoded`. The selection of which characters to percent-encode may vary somewhat from what the {@link parse} and format methods would produce.

### port

port: string

Gets and sets the port portion of the URL.

The port value may be a number or a string containing a number in the range`0` to `65535` (inclusive). Setting the value to the default port of the`URL` objects given `protocol` will result in the `port` value becoming the empty string (`''`).

The port value can be an empty string in which case the port depends on the protocol/scheme:

<omitted>

Upon assigning a value to the port, the value will first be converted to a string using `.toString()`.

If that string is invalid but it begins with a number, the leading number is assigned to `port`. If the number lies outside the range denoted above, it is ignored.

    const myURL = new URL('https://example.org:8888');
    console.log(myURL.port);
    // Prints 8888

    // Default ports are automatically transformed to the empty string
    // (HTTPS protocol's default port is 443)
    myURL.port = '443';
    console.log(myURL.port);
    // Prints the empty string
    console.log(myURL.href);
    // Prints https://example.org/

    myURL.port = 1234;
    console.log(myURL.port);
    // Prints 1234
    console.log(myURL.href);
    // Prints https://example.org:1234/

    // Completely invalid port strings are ignored
    myURL.port = 'abcd';
    console.log(myURL.port);
    // Prints 1234

    // Leading numbers are treated as a port number
    myURL.port = '5678abcd';
    console.log(myURL.port);
    // Prints 5678

    // Non-integers are truncated
    myURL.port = 1234.5678;
    console.log(myURL.port);
    // Prints 1234

    // Out-of-range numbers which are not represented in scientific notation
    // will be ignored.
    myURL.port = 1e10; // 10000000000, will be range-checked as described below
    console.log(myURL.port);
    // Prints 1234

Numbers which contain a decimal point, such as floating-point numbers or numbers in scientific notation, are not an exception to this rule. Leading numbers up to the decimal point will be set as the URL's port, assuming they are valid:

    myURL.port = 4.567e21;
    console.log(myURL.port);
    // Prints 4 (because it is the leading number in the string '4.567e21')

### protocol

protocol: string

Gets and sets the protocol portion of the URL.

    const myURL = new URL('https://example.org');
    console.log(myURL.protocol);
    // Prints https:

    myURL.protocol = 'ftp';
    console.log(myURL.href);
    // Prints ftp://example.org/

Invalid URL protocol values assigned to the `protocol` property are ignored.

### search

search: string

Gets and sets the serialized query portion of the URL.

    const myURL = new URL('https://example.org/abc?123');
    console.log(myURL.search);
    // Prints ?123

    myURL.search = 'abc=xyz';
    console.log(myURL.href);
    // Prints https://example.org/abc?abc=xyz

Any invalid URL characters appearing in the value assigned the `search`property will be `percent-encoded`. The selection of which characters to percent-encode may vary somewhat from what the {@link parse} and format methods would produce.

### Readonly searchParams

searchParams: URLSearchParams

Gets the `URLSearchParams` object representing the query parameters of the URL. This property is read-only but the `URLSearchParams` object it provides can be used to mutate the URL instance; to replace the entirety of query parameters of the URL, use the search setter. See `URLSearchParams` documentation for details.

Use care when using `.searchParams` to modify the `URL` because, per the WHATWG specification, the `URLSearchParams` object uses different rules to determine which characters to percent-encode. For instance, the `URL` object will not percent encode the ASCII tilde (`~`) character, while `URLSearchParams` will always encode it:

    const myUrl = new URL('https://example.org/abc?foo=~bar');

    console.log(myUrl.search);  // prints ?foo=~bar

    // Modify the URL via searchParams...
    myUrl.searchParams.sort();

    console.log(myUrl.search);  // prints ?foo=%7Ebar

### username

username: string

Gets and sets the username portion of the URL.

    const myURL = new URL('https://abc:xyz@example.com');
    console.log(myURL.username);
    // Prints abc

    myURL.username = '123';
    console.log(myURL.href);
    // Prints https://123:xyz@example.com/

Any invalid URL characters appearing in the value assigned the `username`property will be `percent-encoded`. The selection of which characters to percent-encode may vary somewhat from what the {@link parse} and format methods would produce.

## Methods

### toJSON

- toJSON(): string

- The `toJSON()` method on the `URL` object returns the serialized URL. The value returned is equivalent to that of href and toString.

  This method is automatically called when an `URL` object is serialized with `JSON.stringify()`.

      const myURLs = [
        new URL('https://www.example.com'),
        new URL('https://test.example.org'),
      ];
      console.log(JSON.stringify(myURLs));
      // Prints ["https://www.example.com/","https://test.example.org/"]

  #### Returns string

### toString

- toString(): string

- The `toString()` method on the `URL` object returns the serialized URL. The value returned is equivalent to that of href and toJSON.

  #### Returns string

### Static createObjectURL

- createObjectURL(blob: Blob): string

- Creates a `'blob:nodedata:...'` URL string that represents the given `Blob` object and can be used to retrieve the `Blob` later.

      const {
        Blob,
        resolveObjectURL,
      } = require('buffer');

      const blob = new Blob(['hello']);
      const id = URL.createObjectURL(blob);

      // later...

      const otherBlob = resolveObjectURL(id);
      console.log(otherBlob.size);

  The data stored by the registered `Blob` will be retained in memory until`URL.revokeObjectURL()` is called to remove it.

  `Blob` objects are registered within the current thread. If using Worker Threads, `Blob` objects registered within one Worker will not be available to other workers or the main thread.

  since

    v16.7.0

  experimental

  #### Parameters

  - ##### blob: Blob

  #### Returns string

### Static revokeObjectURL

- revokeObjectURL(objectUrl: string): void

- Removes the stored `Blob` identified by the given ID.

  since

    v16.7.0

  experimental

  #### Parameters

  - ##### objectUrl: string

  #### Returns void

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