/pack-rat/003_pack_rat/pack-rat/bower_components/moment/src/lib/duration/bubble.js |
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import absFloor from '../utils/abs-floor'; |
import absCeil from '../utils/abs-ceil'; |
import { createUTCDate } from '../create/date-from-array'; |
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export function bubble () { |
var milliseconds = this._milliseconds; |
var days = this._days; |
var months = this._months; |
var data = this._data; |
var seconds, minutes, hours, years, monthsFromDays; |
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// if we have a mix of positive and negative values, bubble down first |
// check: https://github.com/moment/moment/issues/2166 |
if (!((milliseconds >= 0 && days >= 0 && months >= 0) || |
(milliseconds <= 0 && days <= 0 && months <= 0))) { |
milliseconds += absCeil(monthsToDays(months) + days) * 864e5; |
days = 0; |
months = 0; |
} |
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// The following code bubbles up values, see the tests for |
// examples of what that means. |
data.milliseconds = milliseconds % 1000; |
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seconds = absFloor(milliseconds / 1000); |
data.seconds = seconds % 60; |
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minutes = absFloor(seconds / 60); |
data.minutes = minutes % 60; |
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hours = absFloor(minutes / 60); |
data.hours = hours % 24; |
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days += absFloor(hours / 24); |
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// convert days to months |
monthsFromDays = absFloor(daysToMonths(days)); |
months += monthsFromDays; |
days -= absCeil(monthsToDays(monthsFromDays)); |
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// 12 months -> 1 year |
years = absFloor(months / 12); |
months %= 12; |
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data.days = days; |
data.months = months; |
data.years = years; |
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return this; |
} |
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export function daysToMonths (days) { |
// 400 years have 146097 days (taking into account leap year rules) |
// 400 years have 12 months === 4800 |
return days * 4800 / 146097; |
} |
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export function monthsToDays (months) { |
// the reverse of daysToMonths |
return months * 146097 / 4800; |
} |