| 1 | import { constructFrom } from "./constructFrom.js";
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| 2 | import { toDate } from "./toDate.js";
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| 3 |
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| 4 | /**
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| 5 | * The {@link getDaysInMonth} function options.
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| 6 | */
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| 7 |
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| 8 | /**
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| 9 | * @name getDaysInMonth
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| 10 | * @category Month Helpers
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| 11 | * @summary Get the number of days in a month of the given date.
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| 12 | *
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| 13 | * @description
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| 14 | * Get the number of days in a month of the given date, considering the context if provided.
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| 15 | *
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| 16 | * @param date - The given date
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| 17 | * @param options - An object with options
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| 18 | *
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| 19 | * @returns The number of days in a month
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| 20 | *
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| 21 | * @example
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| 22 | * // How many days are in February 2000?
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| 23 | * const result = getDaysInMonth(new Date(2000, 1))
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| 24 | * //=> 29
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| 25 | */
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| 26 | export function getDaysInMonth(date, options) {
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| 27 | const _date = toDate(date, options?.in);
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| 28 | const year = _date.getFullYear();
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| 29 | const monthIndex = _date.getMonth();
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| 30 | const lastDayOfMonth = constructFrom(_date, 0);
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| 31 | lastDayOfMonth.setFullYear(year, monthIndex + 1, 0);
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| 32 | lastDayOfMonth.setHours(0, 0, 0, 0);
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| 33 | return lastDayOfMonth.getDate();
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| 34 | }
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| 35 |
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| 36 | // Fallback for modularized imports:
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| 37 | export default getDaysInMonth;
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