node_modules/moment/src/lib/moment/start-end-of.js (raw)
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import { normalizeUnits } from '../units/aliases'; import { hooks } from '../utils/hooks'; var MS_PER_SECOND = 1000; var MS_PER_MINUTE = 60 * MS_PER_SECOND; var MS_PER_HOUR = 60 * MS_PER_MINUTE; var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR; // actual modulo - handles negative numbers (for dates before 1970): function mod(dividend, divisor) { return (dividend % divisor + divisor) % divisor; } function localStartOfDate(y, m, d) { // the date constructor remaps years 0-99 to 1900-1999 if (y < 100 && y >= 0) { // preserve leap years using a full 400 year cycle, then reset return new Date(y + 400, m, d) - MS_PER_400_YEARS; } else { return new Date(y, m, d).valueOf(); } } function utcStartOfDate(y, m, d) { // Date.UTC remaps years 0-99 to 1900-1999 if (y < 100 && y >= 0) { // preserve leap years using a full 400 year cycle, then reset return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS; } else { return Date.UTC(y, m, d); } } export function startOf (units) { var time; units = normalizeUnits(units); if (units === undefined || units === 'millisecond' || !this.isValid()) { return this; } var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate; switch (units) { case 'year': time = startOfDate(this.year(), 0, 1); break; case 'quarter': time = startOfDate(this.year(), this.month() - this.month() % 3, 1); break; case 'month': time = startOfDate(this.year(), this.month(), 1); break; case 'week': time = startOfDate(this.year(), this.month(), this.date() - this.weekday()); break; case 'isoWeek': time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1)); break; case 'day': case 'date': time = startOfDate(this.year(), this.month(), this.date()); break; case 'hour': time = this._d.valueOf(); time -= mod(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR); break; case 'minute': time = this._d.valueOf(); time -= mod(time, MS_PER_MINUTE); break; case 'second': time = this._d.valueOf(); time -= mod(time, MS_PER_SECOND); break; } this._d.setTime(time); hooks.updateOffset(this, true); return this; } export function endOf (units) { var time; units = normalizeUnits(units); if (units === undefined || units === 'millisecond' || !this.isValid()) { return this; } var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate; switch (units) { case 'year': time = startOfDate(this.year() + 1, 0, 1) - 1; break; case 'quarter': time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1; break; case 'month': time = startOfDate(this.year(), this.month() + 1, 1) - 1; break; case 'week': time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1; break; case 'isoWeek': time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1; break; case 'day': case 'date': time = startOfDate(this.year(), this.month(), this.date() + 1) - 1; break; case 'hour': time = this._d.valueOf(); time += MS_PER_HOUR - mod(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1; break; case 'minute': time = this._d.valueOf(); time += MS_PER_MINUTE - mod(time, MS_PER_MINUTE) - 1; break; case 'second': time = this._d.valueOf(); time += MS_PER_SECOND - mod(time, MS_PER_SECOND) - 1; break; } this._d.setTime(time); hooks.updateOffset(this, true); return this; } |