/**
 * url参数变对象
 * @param {string} url 输入URL
 * @returns {Object} search对象
 *
 * @example
 *
 * const res = getQueryObj('https://igame.qq.com?name=mike&age=18&feel=cold&from=China');
 *
 * console.log(res);
 * {
 *   name: 'mike',
 *   age: '18',
 *   feel: "cold",
 *   from: 'China',
 * }
 *
 */
export declare function getQueryObj(url: string): Record<string, string>;
/**
 * 组装`url`参数，将search参数添加在后面
 * @param {string} url 输入URL
 * @param {Object} queryObj search对象
 * @returns {string} 组装后的url
 *
 * @example
 * composeUrlQuery('https://baidu.com', {
 *   name: 'mike',
 *   feel: 'cold',
 *   age: '18',
 *   from: 'test',
 * });
 * // https://baidu.com?name=mike&feel=cold&age=18&from=test
 *
 * composeUrlQuery('https://baidu.com?gender=male', {
 *   name: 'mike',
 *   feel: 'cold',
 *   age: '18',
 *   from: 'test',
 * });
 * // https://baidu.com?gender=male&name=mike&feel=cold&age=18&from=test
 *
 */
export declare function composeUrlQuery(url: string, queryObj: object): string;
/**
 * 将对象字符串化
 * @param {object} obj 输入对象
 * @returns {string} 字符串
 * @example
 *
 * encodeUrlParam({a: 1})
 *
 * // '%7B%22a%22%3A1%7D'
 *
 */
export declare function encodeUrlParam(obj: object): string;
/**
 * 将字符串解码，与`encodeUrlParam`相对
 * @param {string} obj 输入字符串
 * @returns {object} 对象
 * @example
 *
 * decodeUrlParam('%7B%22a%22%3A1%7D')
 *
 * // { a: 1 }
 *
 */
export declare function decodeUrlParam(str: string): object;
/**
 * 获取 Url 参数
 * @param {string} paraName 参数 key
 * @param {string} search url search 部分
 * @returns paraValue
 *
 * @example
 * ```ts
 * getUrlPara('gender', '?gender=male&name=mike&feel=cold&age=18&from=test')
 * // male
 *
 * getUrlPara('age', '?gender=male&name=mike&feel=cold&age=18&from=test')
 * // 18
 * ```
 */
export declare function getUrlPara(paraName: string, search?: string): string;