| 1 | import { daysInYear } from "./constants.js";
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| 2 |
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| 3 | /**
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| 4 | * @name milliseconds
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| 5 | * @category Millisecond Helpers
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| 6 | * @summary
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| 7 | * Returns the number of milliseconds in the specified, years, months, weeks, days, hours, minutes and seconds.
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| 8 | *
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| 9 | * @description
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| 10 | * Returns the number of milliseconds in the specified, years, months, weeks, days, hours, minutes and seconds.
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| 11 | *
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| 12 | * One years equals 365.2425 days according to the formula:
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| 13 | *
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| 14 | * > Leap year occurs every 4 years, except for years that are divisible by 100 and not divisible by 400.
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| 15 | * > 1 mean year = (365+1/4-1/100+1/400) days = 365.2425 days
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| 16 | *
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| 17 | * One month is a year divided by 12.
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| 18 | *
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| 19 | * @param duration - The object with years, months, weeks, days, hours, minutes and seconds to be added.
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| 20 | *
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| 21 | * @returns The milliseconds
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| 22 | *
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| 23 | * @example
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| 24 | * // 1 year in milliseconds
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| 25 | * milliseconds({ years: 1 })
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| 26 | * //=> 31556952000
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| 27 | *
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| 28 | * // 3 months in milliseconds
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| 29 | * milliseconds({ months: 3 })
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| 30 | * //=> 7889238000
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| 31 | */
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| 32 | export function milliseconds({
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| 33 | years,
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| 34 | months,
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| 35 | weeks,
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| 36 | days,
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| 37 | hours,
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| 38 | minutes,
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| 39 | seconds,
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| 40 | }) {
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| 41 | let totalDays = 0;
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| 42 |
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| 43 | if (years) totalDays += years * daysInYear;
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| 44 | if (months) totalDays += months * (daysInYear / 12);
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| 45 | if (weeks) totalDays += weeks * 7;
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| 46 | if (days) totalDays += days;
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| 47 |
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| 48 | let totalSeconds = totalDays * 24 * 60 * 60;
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| 49 |
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| 50 | if (hours) totalSeconds += hours * 60 * 60;
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| 51 | if (minutes) totalSeconds += minutes * 60;
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| 52 | if (seconds) totalSeconds += seconds;
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| 53 |
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| 54 | return Math.trunc(totalSeconds * 1000);
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| 55 | }
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| 56 |
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| 57 | // Fallback for modularized imports:
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| 58 | export default milliseconds;
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