/**
 * Takes an object and serializes its keys and values into a query string.
 * Only plain values and arrays of plain values are supported.
 *
 * Note: the returned string does *not* contain a leading "?"
 *
 * @example
 * ```ts
 * import { objectToQuery } from "apprt-core/url-utils";
 * const query = objectToQuery({
 *     a: 1,
 *     b: ["2", 3]
 * });
 * // query === "a=1&b=2&b=3"
 * ```
 *
 * @param object holds query parameters
 * @returns the serialized query string
 */
declare function objectToQuery(object?: Record<string, any | any[]>): string;
/**
 * Parses a query string into an object of key value pairs.
 * Reoccurring keys are converted into key-array pairs.
 * No transformation of the individual values is done, i.e. all values will be strings.
 *
 * @example
 * ```ts
 * import { queryToObject } from "apprt-core/url-utils";
 * const object = queryToObject("a=1&b=2&b=3");
 * // object is { a: "1", b: ["2", "3"] }
 * ```
 *
 * @param query The query string. May start with an optional "?"
 * @returns the parsed object
 */
declare function queryToObject(query: string | URLSearchParams): Record<string, string | string[]>;
/**
 * Returns true if the given `url` is on a different origin than the current host.
 */
declare function isCrossDomain(url: URL): boolean;
/**
 * Returns true if the given `url` is on a different host than `origin`.
 */
declare function isCrossDomainFrom(origin: string, url: URL): boolean;
/**
 * Returns true if the given URL points to a local file system resource, e.g. `file://...`.
 *
 * File URLs are sometimes used in native app exports.
 */
declare function isFileUrl(url: URL): boolean;
/**
 * Helper method to calculate the page base URL.
 *
 * @returns {function} Function to return the base URL or given or current page.
 */
declare function pageBaseUrl(location?: URL): URL;
/**
 * Converts a relative url to an absolute url.
 * It works only if the relative url is relative to the current page!
 * @returns {string} absolute url
 */
declare function toAbsoluteUrl(relativeUrl: string): URL;
/**
 * Checks if a url is absolute
 * @param {string|undefined} url url to test
 * @returns {Boolean} true|false
 */
declare function isAbsoluteUrl(url: string | undefined): boolean;

export { isAbsoluteUrl, isCrossDomain, isCrossDomainFrom, isFileUrl, objectToQuery, pageBaseUrl, queryToObject, toAbsoluteUrl };