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hotomoe/packages/frontend/src/scripts/time.ts
Shun Sakai c2370a1be6
chore: 著作権とライセンスについての情報を各ファイルに追加する (#11348)
* chore: Add the SPDX information to each file

Add copyright and licensing information as defined in version 3.0 of
the REUSE Specification.

* tweak format

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
2023-07-27 14:31:52 +09:00

46 lines
1.4 KiB
TypeScript

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