gree_leran/node_modules/dayjs/esm/plugin/isoWeek/index.js

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2024-06-14 01:11:29 +00:00
import { D, W, Y } from '../../constant';
var isoWeekPrettyUnit = 'isoweek';
export default (function (o, c, d) {
var getYearFirstThursday = function getYearFirstThursday(year, isUtc) {
var yearFirstDay = (isUtc ? d.utc : d)().year(year).startOf(Y);
var addDiffDays = 4 - yearFirstDay.isoWeekday();
if (yearFirstDay.isoWeekday() > 4) {
addDiffDays += 7;
}
return yearFirstDay.add(addDiffDays, D);
};
var getCurrentWeekThursday = function getCurrentWeekThursday(ins) {
return ins.add(4 - ins.isoWeekday(), D);
};
var proto = c.prototype;
proto.isoWeekYear = function () {
var nowWeekThursday = getCurrentWeekThursday(this);
return nowWeekThursday.year();
};
proto.isoWeek = function (week) {
if (!this.$utils().u(week)) {
return this.add((week - this.isoWeek()) * 7, D);
}
var nowWeekThursday = getCurrentWeekThursday(this);
var diffWeekThursday = getYearFirstThursday(this.isoWeekYear(), this.$u);
return nowWeekThursday.diff(diffWeekThursday, W) + 1;
};
proto.isoWeekday = function (week) {
if (!this.$utils().u(week)) {
return this.day(this.day() % 7 ? week : week - 7);
}
return this.day() || 7;
};
var oldStartOf = proto.startOf;
proto.startOf = function (units, startOf) {
var utils = this.$utils();
var isStartOf = !utils.u(startOf) ? startOf : true;
var unit = utils.p(units);
if (unit === isoWeekPrettyUnit) {
return isStartOf ? this.date(this.date() - (this.isoWeekday() - 1)).startOf('day') : this.date(this.date() - 1 - (this.isoWeekday() - 1) + 7).endOf('day');
}
return oldStartOf.bind(this)(units, startOf);
};
});