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45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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const dateTimeIntervals = {
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'day': 86400000,
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'hour': 3600000,
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'ms': 1,
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};
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export function dateUTC(time: number[]): Date {
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const d =
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time.length === 2 ? Date.UTC(time[0], time[1])
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: time.length === 3 ? Date.UTC(time[0], time[1], time[2])
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: time.length === 4 ? Date.UTC(time[0], time[1], time[2], time[3])
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: time.length === 5 ? Date.UTC(time[0], time[1], time[2], time[3], time[4])
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: time.length === 6 ? Date.UTC(time[0], time[1], time[2], time[3], time[4], time[5])
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: time.length === 7 ? Date.UTC(time[0], time[1], time[2], time[3], time[4], time[5], time[6])
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: null;
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if (!d) throw new Error('wrong number of arguments');
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return new Date(d);
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}
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export function isTimeSame(a: Date, b: Date): boolean {
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return a.getTime() === b.getTime();
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}
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export function isTimeBefore(a: Date, b: Date): boolean {
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return (a.getTime() - b.getTime()) < 0;
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}
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export function isTimeAfter(a: Date, b: Date): boolean {
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return (a.getTime() - b.getTime()) > 0;
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}
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export function addTime(x: Date, value: number, span: keyof typeof dateTimeIntervals = 'ms'): Date {
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return new Date(x.getTime() + (value * dateTimeIntervals[span]));
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}
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export function subtractTime(x: Date, value: number, span: keyof typeof dateTimeIntervals = 'ms'): Date {
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return new Date(x.getTime() - (value * dateTimeIntervals[span]));
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}
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