67 lines
2.9 KiB
JavaScript
67 lines
2.9 KiB
JavaScript
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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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import subDays from "../subDays/index.js";
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import subMonths from "../subMonths/index.js";
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import requiredArgs from "../_lib/requiredArgs/index.js";
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import toInteger from "../_lib/toInteger/index.js";
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/**
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* @name sub
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* @category Common Helpers
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* @summary Subtract the specified years, months, weeks, days, hours, minutes and seconds from the given date.
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*
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* @description
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* Subtract the specified years, months, weeks, days, hours, minutes and seconds from the given date.
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*
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* @param {Date|Number} date - the date to be changed
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* @param {Duration} duration - the object with years, months, weeks, days, hours, minutes and seconds to be subtracted
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*
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* | Key | Description |
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* |---------|------------------------------------|
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* | years | Amount of years to be subtracted |
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* | months | Amount of months to be subtracted |
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* | weeks | Amount of weeks to be subtracted |
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* | days | Amount of days to be subtracted |
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* | hours | Amount of hours to be subtracted |
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* | minutes | Amount of minutes to be subtracted |
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* | seconds | Amount of seconds to be subtracted |
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*
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* All values default to 0
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*
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* @returns {Date} the new date with the seconds subtracted
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* @throws {TypeError} 2 arguments required
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*
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* @example
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* // Subtract the following duration from 15 June 2017 15:29:20
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* const result = sub(new Date(2017, 5, 15, 15, 29, 20), {
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* years: 2,
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* months: 9,
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* weeks: 1,
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* days: 7,
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* hours: 5,
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* minutes: 9,
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* seconds: 30
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* })
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* //=> Mon Sep 1 2014 10:19:50
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*/
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export default function sub(date, duration) {
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requiredArgs(2, arguments);
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if (!duration || _typeof(duration) !== 'object') return new Date(NaN);
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var years = duration.years ? toInteger(duration.years) : 0;
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var months = duration.months ? toInteger(duration.months) : 0;
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var weeks = duration.weeks ? toInteger(duration.weeks) : 0;
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var days = duration.days ? toInteger(duration.days) : 0;
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var hours = duration.hours ? toInteger(duration.hours) : 0;
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var minutes = duration.minutes ? toInteger(duration.minutes) : 0;
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var seconds = duration.seconds ? toInteger(duration.seconds) : 0; // Subtract years and months
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var dateWithoutMonths = subMonths(date, months + years * 12); // Subtract weeks and days
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var dateWithoutDays = subDays(dateWithoutMonths, days + weeks * 7); // Subtract hours, minutes and seconds
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var minutestoSub = minutes + hours * 60;
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var secondstoSub = seconds + minutestoSub * 60;
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var mstoSub = secondstoSub * 1000;
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var finalDate = new Date(dateWithoutDays.getTime() - mstoSub);
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return finalDate;
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}
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