export declare const intVal: (mixedVar: any, base?: number) => number; export declare const strPos: (haystack: string, needle: string, offset?: number) => any; export declare const isNumeric: (n: any) => boolean; export declare const daysInMonth: (month: number, year: number) => number; export declare const intPart: (floatNum: number) => number; export declare const roundUp: (dblValue: number) => number; export declare const mod: (val1: number, val2: number) => number; export declare const ceiling: (val: number, significance?: number) => any; export declare const trunc: (value: any) => number; export declare const round: (num: number, dec: number) => number; export declare const isDecimal: (val: number) => boolean; export declare const romance: (num: number) => string; export declare const leftPad: (value: number, len: number) => string; export declare const formatReadDate: (year: number, month: number, day: number) => string; export declare const formatReadTime: (date: Date) => string; export declare const convertDate: (date: string) => string; export declare const daysBetween: (date1: string, date2: string) => number; export declare const dateAdd: (interval: string, value: number, year: number, month: number, day: number) => string; export declare const roundTime: (time: string) => string; export declare const roundUpTime: (time: string) => string; export declare const mktime: (hour?: number, minute?: number, second?: number, month?: number, day?: number, year?: number) => any;