import { ArrPred, MapFunc } from '../typings/types';
interface FilterMap {
    <T, R>(filterFn: ArrPred<T>, mapFn: MapFunc<T, R>, arr: ArrayLike<T>): R[];
    <T, R>(filterFn: ArrPred<T>, mapFn: MapFunc<T, R>): (arr: ArrayLike<T>) => R[];
}
/**
 * This is shortcut for filter + map, but applied in one iteration.
 *
 * @param {Function} filterFn - filter function
 * @param {Function} mapFn - map function
 * @param {Array} arr
 * @return {Array}
 * @example
 *
 *      var isEven = n => n % 2 === 0;
 *      var double = x => x * 2;
 *
 *      filterMap(isEven, double, [1, 2, 3, 4]); //=> [4, 8]
 *
 *      // this is equivalent to
 *      // map(double, filter(isEven, [1, 2, 3, 4]));
 */
declare const _default: FilterMap;
export default _default;