73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
import { subDays } from "./subDays.mjs";
|
|
import { subMonths } from "./subMonths.mjs";
|
|
import { constructFrom } from "./constructFrom.mjs";
|
|
|
|
/**
|
|
* @name sub
|
|
* @category Common Helpers
|
|
* @summary Subtract the specified years, months, weeks, days, hours, minutes and seconds from the given date.
|
|
*
|
|
* @description
|
|
* Subtract the specified years, months, weeks, days, hours, minutes and seconds from the given date.
|
|
*
|
|
* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
|
|
*
|
|
* @param date - The date to be changed
|
|
* @param duration - The object with years, months, weeks, days, hours, minutes and seconds to be subtracted
|
|
*
|
|
* | Key | Description |
|
|
* |---------|------------------------------------|
|
|
* | years | Amount of years to be subtracted |
|
|
* | months | Amount of months to be subtracted |
|
|
* | weeks | Amount of weeks to be subtracted |
|
|
* | days | Amount of days to be subtracted |
|
|
* | hours | Amount of hours to be subtracted |
|
|
* | minutes | Amount of minutes to be subtracted |
|
|
* | seconds | Amount of seconds to be subtracted |
|
|
*
|
|
* All values default to 0
|
|
*
|
|
* @returns The new date with the seconds subtracted
|
|
*
|
|
* @example
|
|
* // Subtract the following duration from 15 June 2017 15:29:20
|
|
* const result = sub(new Date(2017, 5, 15, 15, 29, 20), {
|
|
* years: 2,
|
|
* months: 9,
|
|
* weeks: 1,
|
|
* days: 7,
|
|
* hours: 5,
|
|
* minutes: 9,
|
|
* seconds: 30
|
|
* })
|
|
* //=> Mon Sep 1 2014 10:19:50
|
|
*/
|
|
export function sub(date, duration) {
|
|
const {
|
|
years = 0,
|
|
months = 0,
|
|
weeks = 0,
|
|
days = 0,
|
|
hours = 0,
|
|
minutes = 0,
|
|
seconds = 0,
|
|
} = duration;
|
|
|
|
// Subtract years and months
|
|
const dateWithoutMonths = subMonths(date, months + years * 12);
|
|
|
|
// Subtract weeks and days
|
|
const dateWithoutDays = subDays(dateWithoutMonths, days + weeks * 7);
|
|
|
|
// Subtract hours, minutes and seconds
|
|
const minutestoSub = minutes + hours * 60;
|
|
const secondstoSub = seconds + minutestoSub * 60;
|
|
const mstoSub = secondstoSub * 1000;
|
|
const finalDate = constructFrom(date, dateWithoutDays.getTime() - mstoSub);
|
|
|
|
return finalDate;
|
|
}
|
|
|
|
// Fallback for modularized imports:
|
|
export default sub;
|