/** Represents an URL. */
export declare class URL {
    /**
     * Creates and returns a URL object referencing the URL specified using an absolute URL
     *  string, or a relative URL string and a base URL string.
     */
    constructor(url: string, base?: string | URL);
    /** The fragment identifier of the URL. */
    hash: string;
    /**
     * The domain (hostname). If a port was specified, followed by a colon and the port
     * of the URL.
     */
    host: string;
    /** The domain of the URL. */
    hostname: string;
    /**
     * The whole URL as string.
     *
     * This has the same result as calling `.toString()`.
     */
    href: string;
    /**
     * Returns a string containing the origin of the URL (its scheme, domain
     * and port).
     */
    readonly origin: string;
    /** The password specified before the domain name. */
    password: string;
    /** The pathname preceded by an initial '/'. */
    pathname: string;
    /** The port number of the URL. */
    port: string;
    /** The protocol of the URL, including the final colon. */
    protocol: string;
    /**
     * A string indicating the parameter string of the URL. If any parameters are provided,
     * this string includes all of them, beginning with the leading `?` character.
     */
    search: string;
    /**
     * A URLSearchParams object which can be used to access the individual query
     * parameters found in `search`.
     */
    readonly searchParams: URLSearchParams;
    /** The username specified before the domain name. */
    username: string;
    /**
     * Returns a string containing the whole URL.
     *
     * This has the same result as accessing the `.href` property.
     */
    toJSON(): string;
    /**
     * Returns a string containing the whole URL.
     *
     * This has the same result as accessing the `.href` property.
     */
    toString(): string;
}
/**
 * The URLSearchParams interface defines utility methods to work with the query
 * string of a URL.
 */
export declare class URLSearchParams {
    /** Creates a new instance. */
    constructor(init?: string[][] | Record<string, string> | string | URLSearchParams);
    /**
     * Appends a specified key/value pair as a new search parameter.
     */
    append(name: string, value: string): void;
    /**
     * Deletes the given search parameter, and its associated value, from the list of all search parameters.
     */
    delete(name: string): void;
    /**
     * Returns the first value associated to the given search parameter.
     */
    get(name: string): string | null;
    /**
     * Returns all the values association with a given search parameter.
     */
    getAll(name: string): string[];
    /**
     * Returns a Boolean indicating if such a search parameter exists.
     */
    has(name: string): boolean;
    /**
     * Sets the value associated to a given search parameter to the given value. If there were several values, delete the others.
     */
    set(name: string, value: string): void;
    /**
     * Sorts all key/value pairs, if any, by their keys.
     */
    sort(): void;
    /**
     * Returns a string containing a query string suitable for use in a URL. Does not include the question mark.
     */
    toString(): string;
    /**
     * Allows iteration through all values contained in this object via a callback function.
     */
    forEach(callbackfn: (value: string, key: string, parent: URLSearchParams) => void, thisArg?: any): void;
}