77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
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import { addDays } from "./addDays.mjs";
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import { addMonths } from "./addMonths.mjs";
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import { constructFrom } from "./constructFrom.mjs";
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import { toDate } from "./toDate.mjs";
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/**
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* @name add
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* @category Common Helpers
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* @summary Add the specified years, months, weeks, days, hours, minutes and seconds to the given date.
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*
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* @description
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* Add the specified years, months, weeks, days, hours, minutes and seconds to the given date.
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*
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* @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).
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*
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* @param date - The date to be changed
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* @param duration - The object with years, months, weeks, days, hours, minutes and seconds to be added.
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*
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* | Key | Description |
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* |----------------|------------------------------------|
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* | years | Amount of years to be added |
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* | months | Amount of months to be added |
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* | weeks | Amount of weeks to be added |
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* | days | Amount of days to be added |
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* | hours | Amount of hours to be added |
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* | minutes | Amount of minutes to be added |
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* | seconds | Amount of seconds to be added |
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*
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* All values default to 0
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*
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* @returns The new date with the seconds added
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*
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* @example
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* // Add the following duration to 1 September 2014, 10:19:50
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* const result = add(new Date(2014, 8, 1, 10, 19, 50), {
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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,\\-7
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* minutes: 9,
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* seconds: 30,
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* })
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* //=> Thu Jun 15 2017 15:29:20
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*/
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export function add(date, duration) {
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const {
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years = 0,
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months = 0,
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weeks = 0,
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days = 0,
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hours = 0,
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minutes = 0,
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seconds = 0,
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} = duration;
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// Add years and months
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const _date = toDate(date);
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const dateWithMonths =
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months || years ? addMonths(_date, months + years * 12) : _date;
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// Add weeks and days
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const dateWithDays =
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days || weeks ? addDays(dateWithMonths, days + weeks * 7) : dateWithMonths;
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// Add days, hours, minutes and seconds
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const minutesToAdd = minutes + hours * 60;
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const secondsToAdd = seconds + minutesToAdd * 60;
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const msToAdd = secondsToAdd * 1000;
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const finalDate = constructFrom(date, dateWithDays.getTime() + msToAdd);
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return finalDate;
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}
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// Fallback for modularized imports:
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export default add;
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