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 王天杨
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/**
* @name closestIndexTo
* @category Common Helpers
* @summary Return an index of the closest date from the array comparing to the given date.
*
* @description
* Return an index of the closest date from the array comparing to the given date.
*
* @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 dateToCompare - The date to compare with
* @param dates - The array to search
*
* @returns An index of the date closest to the given date or undefined if no valid value is given
*
* @example
* // Which date is closer to 6 September 2015?
* const dateToCompare = new Date(2015, 8, 6)
* const datesArray = [
* new Date(2015, 0, 1),
* new Date(2016, 0, 1),
* new Date(2017, 0, 1)
* ]
* const result = closestIndexTo(dateToCompare, datesArray)
* //=> 1
*/
export declare function closestIndexTo<DateType extends Date>(
dateToCompare: DateType | number | string,
dates: Array<DateType | number | string>,
): number | undefined;
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