vremel/dist/datetime/endOfYear.js

JavaScript date utility library for Temporal API

import { isPlainDate, isPlainYearMonth, isZonedDateTime, } from "../type-utils.js";
import { endOfTimeForZonedDateTime } from "./_endOfTimeForZonedDateTime.js";
/**
 * Returns the end of a year for the given datetime
 * @param dt datetime object which includes date info
 * @returns Temporal object which represents the end of a year
 */
export function endOfYear(dt) {
    if (isPlainYearMonth(dt)) {
        return dt.with({
            month: dt.monthsInYear,
        });
    }
    if (isPlainDate(dt)) {
        return dt.with({
            month: dt.monthsInYear,
            day: Number.MAX_VALUE,
        });
    }
    const withArg = {
        month: dt.monthsInYear,
        day: Number.MAX_VALUE,
        hour: 23,
        minute: 59,
        second: 59,
        millisecond: 999,
        microsecond: 999,
        nanosecond: 999,
    };
    if (!isZonedDateTime(dt)) {
        return dt.with(withArg);
    }
    return endOfTimeForZonedDateTime(dt, withArg);
}
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