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Contents
import absFloor from '../utils/abs-floor';
export function bubble () {
var milliseconds = this._milliseconds;
var days = this._days;
var months = this._months;
var data = this._data;
var seconds, minutes, hours, years = 0;
// The following code bubbles up values, see the tests for
// examples of what that means.
data.milliseconds = milliseconds % 1000;
seconds = absFloor(milliseconds / 1000);
data.seconds = seconds % 60;
minutes = absFloor(seconds / 60);
data.minutes = minutes % 60;
hours = absFloor(minutes / 60);
data.hours = hours % 24;
days += absFloor(hours / 24);
// Accurately convert days to years, assume start from year 0.
years = absFloor(daysToYears(days));
days -= absFloor(yearsToDays(years));
// 30 days to a month
// TODO (iskren): Use anchor date (like 1st Jan) to compute this.
months += absFloor(days / 30);
days %= 30;
// 12 months -> 1 year
years += absFloor(months / 12);
months %= 12;
data.days = days;
data.months = months;
data.years = years;
return this;
}
export function daysToYears (days) {
// 400 years have 146097 days (taking into account leap year rules)
return days * 400 / 146097;
}
export function yearsToDays (years) {
// years * 365 + absFloor(years / 4) -
// absFloor(years / 100) + absFloor(years / 400);
return years * 146097 / 400;
}
Version data entries
9 entries across 9 versions & 3 rubygems