58f8093689
- Updated all component headers and documentation
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35 lines
1.0 KiB
JavaScript
35 lines
1.0 KiB
JavaScript
import { toDate } from "./toDate.mjs";
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import { constructFrom } from "./constructFrom.mjs";
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/**
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* @name getDaysInMonth
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* @category Month Helpers
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* @summary Get the number of days in a month of the given date.
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*
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* @description
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* Get the number of days in a month of the given date.
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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 date - The given date
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*
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* @returns The number of days in a month
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*
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* @example
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* // How many days are in February 2000?
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* const result = getDaysInMonth(new Date(2000, 1))
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* //=> 29
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*/
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export function getDaysInMonth(date) {
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const _date = toDate(date);
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const year = _date.getFullYear();
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const monthIndex = _date.getMonth();
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const lastDayOfMonth = constructFrom(date, 0);
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lastDayOfMonth.setFullYear(year, monthIndex + 1, 0);
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lastDayOfMonth.setHours(0, 0, 0, 0);
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return lastDayOfMonth.getDate();
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}
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// Fallback for modularized imports:
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export default getDaysInMonth;
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