Marc Mintel
5397309103
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42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
import { startOfDay } from "./startOfDay.mjs";
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/**
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* @name isSameDay
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* @category Day Helpers
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* @summary Are the given dates in the same day (and year and month)?
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*
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* @description
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* Are the given dates in the same day (and year and month)?
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*
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* @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).
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*
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* @param dateLeft - The first date to check
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* @param dateRight - The second date to check
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* @returns The dates are in the same day (and year and month)
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*
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* @example
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* // Are 4 September 06:00:00 and 4 September 18:00:00 in the same day?
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* const result = isSameDay(new Date(2014, 8, 4, 6, 0), new Date(2014, 8, 4, 18, 0))
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* //=> true
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*
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* @example
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* // Are 4 September and 4 October in the same day?
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* const result = isSameDay(new Date(2014, 8, 4), new Date(2014, 9, 4))
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* //=> false
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*
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* @example
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* // Are 4 September, 2014 and 4 September, 2015 in the same day?
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* const result = isSameDay(new Date(2014, 8, 4), new Date(2015, 8, 4))
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* //=> false
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*/
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export function isSameDay(dateLeft, dateRight) {
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const dateLeftStartOfDay = startOfDay(dateLeft);
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const dateRightStartOfDay = startOfDay(dateRight);
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return +dateLeftStartOfDay === +dateRightStartOfDay;
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}
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// Fallback for modularized imports:
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export default isSameDay;
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