bc518174
 王天杨
提交两个项目文件
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import {
addDays,
differenceInCalendarDays,
endOfISOWeek,
endOfWeek,
getISOWeek,
getWeek,
Locale,
startOfISOWeek,
startOfWeek
} from 'date-fns';
import { MonthWeek } from './getMonthWeeks';
/** Return the weeks between two dates. */
export function daysToMonthWeeks(
fromDate: Date,
toDate: Date,
options?: {
ISOWeek?: boolean;
locale?: Locale;
weekStartsOn?: 0 | 1 | 2 | 3 | 4 | 5 | 6;
firstWeekContainsDate?: 1 | 4;
}
): MonthWeek[] {
const toWeek = options?.ISOWeek
? endOfISOWeek(toDate)
: endOfWeek(toDate, options);
const fromWeek = options?.ISOWeek
? startOfISOWeek(fromDate)
: startOfWeek(fromDate, options);
const nOfDays = differenceInCalendarDays(toWeek, fromWeek);
const days: Date[] = [];
for (let i = 0; i <= nOfDays; i++) {
days.push(addDays(fromWeek, i));
}
const weeksInMonth = days.reduce((result: MonthWeek[], date) => {
const weekNumber = options?.ISOWeek
? getISOWeek(date)
: getWeek(date, options);
const existingWeek = result.find(
(value) => value.weekNumber === weekNumber
);
if (existingWeek) {
existingWeek.dates.push(date);
return result;
}
result.push({
weekNumber,
dates: [date]
});
return result;
}, []);
return weeksInMonth;
}
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