Current File : /var/www/html/node_modules/date-fns/esm/sub/index.js
import subDays from "../subDays/index.js";
import subMonths from "../subMonths/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
import toInteger from "../_lib/toInteger/index.js";
/**
* @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.
*
* @param {Date|Number} date - the date to be changed
* @param {Duration} 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 {Date} the new date with the seconds subtracted
* @throws {TypeError} 2 arguments required
*
* @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 default function sub(date, duration) {
requiredArgs(2, arguments);
if (!duration || typeof duration !== 'object') return new Date(NaN);
var years = duration.years ? toInteger(duration.years) : 0;
var months = duration.months ? toInteger(duration.months) : 0;
var weeks = duration.weeks ? toInteger(duration.weeks) : 0;
var days = duration.days ? toInteger(duration.days) : 0;
var hours = duration.hours ? toInteger(duration.hours) : 0;
var minutes = duration.minutes ? toInteger(duration.minutes) : 0;
var seconds = duration.seconds ? toInteger(duration.seconds) : 0; // Subtract years and months
var dateWithoutMonths = subMonths(date, months + years * 12); // Subtract weeks and days
var dateWithoutDays = subDays(dateWithoutMonths, days + weeks * 7); // Subtract hours, minutes and seconds
var minutestoSub = minutes + hours * 60;
var secondstoSub = seconds + minutestoSub * 60;
var mstoSub = secondstoSub * 1000;
var finalDate = new Date(dateWithoutDays.getTime() - mstoSub);
return finalDate;
}
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