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/** * @name differenceInBusinessDays * @category Day Helpers * @summary Get the number of business days between the given dates. * * @description * Get the number of business day periods between the given dates. * Business days being days that arent in the weekend. * Like `differenceInCalendarDays`, the function removes the times from * the dates before calculating the difference. * * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc). * * @param dateLeft - The later date * @param dateRight - The earlier date * * @returns The number of business days * * @example * // How many business days are between * // 10 January 2014 and 20 July 2014? * const result = differenceInBusinessDays( * new Date(2014, 6, 20), * new Date(2014, 0, 10) * ) * //=> 136 * * // How many business days are between * // 30 November 2021 and 1 November 2021? * const result = differenceInBusinessDays( * new Date(2021, 10, 30), * new Date(2021, 10, 1) * ) * //=> 21 * * // How many business days are between * // 1 November 2021 and 1 December 2021? * const result = differenceInBusinessDays( * new Date(2021, 10, 1), * new Date(2021, 11, 1) * ) * //=> -22 * * // How many business days are between * // 1 November 2021 and 1 November 2021 ? * const result = differenceInBusinessDays( * new Date(2021, 10, 1), * new Date(2021, 10, 1) * ) * //=> 0 */ export declare function differenceInBusinessDays<DateType extends Date>( dateLeft: DateType | number | string, dateRight: DateType | number | string, ): number;