export declare class UrlHelper {
    /**
     * Test if the provided string is a valid URL
     * @param url the URL to check
     */
    static isValidUrl(url: string): boolean;
    /**
     * Get the value of a querystring
     * @param  {String} field The field to get the value of
     * @param  {String} url   The URL to get the value from (optional)
     * @return {String}       The field value
     */
    static getQueryStringParam(field: string, url: string): string;
    /**
     * @param {String} field The field name of the query string to remove
     * @param {String} sourceURL The source URL
     * @return {String}       The updated URL
     */
    static removeQueryStringParam(field: string, sourceURL: string): string;
    /**
     * Add or replace a query string parameter
     * @param url The current URL
     * @param param The query string parameter to add or replace
     * @param value The new value
     */
    static addOrReplaceQueryStringParam(url: string, param: string, value: string): string;
    /**
     * Gets the current query string parameters
     * @returns query string parameters as object
     */
    static getQueryStringParams(): {
        [parameter: string]: string;
    };
    /**
     * Decodes a provided string
     * @param encodedStr the string to decode
     */
    static decode(encodedStr: string): string;
}
export declare enum PageOpenBehavior {
    "Self" = "self",
    "NewTab" = "newTab"
}
export declare enum QueryPathBehavior {
    "URLFragment" = "fragment",
    "QueryParameter" = "queryparameter"
}