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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 '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]));
}
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