@burglekitt/gmt
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Temporal-based date and time utilities with timezone support and polyfill integration
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TypeScript
/**
* Return true when `date` is between `start` and `end` (inclusive by default).
*
* - Uses Temporal.PlainDate.compare to compare dates.
* - Returns false if start > end (invalid range).
* - Returns false if any input is invalid.
* - Use options.inclusiveStart and options.inclusiveEnd to control boundary inclusivity.
*
* @param date ISO PlainDate string to check
* @param start ISO PlainDate string for the start of the range
* @param end ISO PlainDate string for the end of the range
* @param options { inclusiveStart?: boolean = true, inclusiveEnd?: boolean = true }
* @returns boolean indicating whether date is between start and end
*
* @example isBetweenDate("2024-02-29", "2024-02-01", "2024-02-28") // false
* @example isBetweenDate("2024-02-29", "2024-02-01", "2024-02-29") // true
* @example isBetweenDate("2024-02-29", "2024-02-29", "2024-02-28") // false
* @example isBetweenDate("2024-02-29", "2024-02-28", "2024-03-01") // true
* @example isBetweenDate("invalid", "2024-02-01", "2024-02-28") // false
* @example isBetweenDate("2024-02-29", "invalid", "2024-02-28") // false
* @example isBetweenDate("2024-02-29", "2024-02-01", "invalid") // false
*/
export declare function isBetweenDate(date: string, start: string, end: string, options?: {
inclusiveStart?: boolean;
inclusiveEnd?: boolean;
}): boolean;