ngx-bootstrap
Version:
Native Angular Bootstrap Components
47 lines • 1.67 kB
JavaScript
import { absFloor } from '../utils';
import { absCeil } from '../utils/abs-ceil';
export function bubble(dur) {
var milliseconds = dur._milliseconds;
var days = dur._days;
var months = dur._months;
var data = dur._data;
// 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;
}
// The following code bubbles up values, see the tests for
// examples of what that means.
data.milliseconds = milliseconds % 1000;
var seconds = absFloor(milliseconds / 1000);
data.seconds = seconds % 60;
var minutes = absFloor(seconds / 60);
data.minutes = minutes % 60;
var hours = absFloor(minutes / 60);
data.hours = hours % 24;
days += absFloor(hours / 24);
// convert days to months
var monthsFromDays = absFloor(daysToMonths(days));
months += monthsFromDays;
days -= absCeil(monthsToDays(monthsFromDays));
// 12 months -> 1 year
var years = absFloor(months / 12);
months %= 12;
data.day = days;
data.month = months;
data.year = years;
return dur;
}
export function daysToMonths(day) {
// 400 years have 146097 days (taking into account leap year rules)
// 400 years have 12 months === 4800
return day * 4800 / 146097;
}
export function monthsToDays(month) {
// the reverse of daysToMonths
return month * 146097 / 4800;
}
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