import { SortOrderType } from "handsontable/plugins/multiColumnSorting";
export declare const isEmptyOrSpaces: (str: string) => boolean;
export declare const floatFromString: (str: string) => number;
export declare const intFromString: (str: string) => number;
/**
 * Format date
 * @param date
 * @param formatString
 * dd - Day
 * MM - Month
 * yy - Year
 * yyyy - Full year
 * hh - Hour
 * mm - minute
 * ss - second
 * @returns
 */
export declare function formatDate(date: Date, formatString?: string): string;
export declare function formatNumber(value: number, frac?: number, locate?: string, currency?: string): string;
export declare const valueFloatFormat: (value: string | number | null) => string | null;
export declare function sortFunction(sortOrderType: SortOrderType): (value: any, newValue: any) => 0 | 1 | -1;