Marc Mintel
5397309103
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37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
import { startOfQuarter } from "./startOfQuarter.mjs";
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/**
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* @name isSameQuarter
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* @category Quarter Helpers
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* @summary Are the given dates in the same quarter (and year)?
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*
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* @description
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* Are the given dates in the same quarter (and year)?
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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 quarter (and year)
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*
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* @example
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* // Are 1 January 2014 and 8 March 2014 in the same quarter?
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* const result = isSameQuarter(new Date(2014, 0, 1), new Date(2014, 2, 8))
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* //=> true
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*
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* @example
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* // Are 1 January 2014 and 1 January 2015 in the same quarter?
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* const result = isSameQuarter(new Date(2014, 0, 1), new Date(2015, 0, 1))
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* //=> false
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*/
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export function isSameQuarter(dateLeft, dateRight) {
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const dateLeftStartOfQuarter = startOfQuarter(dateLeft);
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const dateRightStartOfQuarter = startOfQuarter(dateRight);
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return +dateLeftStartOfQuarter === +dateRightStartOfQuarter;
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}
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// Fallback for modularized imports:
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export default isSameQuarter;
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