/node_modules/moment/src/lib/duration/iso-string.js
https://bitbucket.org/coleman333/smartsite · JavaScript · 64 lines · 42 code · 10 blank · 12 comment · 5 complexity · 709938ee251f940e6fff2ff76111da19 MD5 · raw file
- import absFloor from '../utils/abs-floor';
- var abs = Math.abs;
- function sign(x) {
- return ((x > 0) - (x < 0)) || +x;
- }
- export function toISOString() {
- // for ISO strings we do not use the normal bubbling rules:
- // * milliseconds bubble up until they become hours
- // * days do not bubble at all
- // * months bubble up until they become years
- // This is because there is no context-free conversion between hours and days
- // (think of clock changes)
- // and also not between days and months (28-31 days per month)
- if (!this.isValid()) {
- return this.localeData().invalidDate();
- }
- var seconds = abs(this._milliseconds) / 1000;
- var days = abs(this._days);
- var months = abs(this._months);
- var minutes, hours, years;
- // 3600 seconds -> 60 minutes -> 1 hour
- minutes = absFloor(seconds / 60);
- hours = absFloor(minutes / 60);
- seconds %= 60;
- minutes %= 60;
- // 12 months -> 1 year
- years = absFloor(months / 12);
- months %= 12;
- // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
- var Y = years;
- var M = months;
- var D = days;
- var h = hours;
- var m = minutes;
- var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
- var total = this.asSeconds();
- if (!total) {
- // this is the same as C#'s (Noda) and python (isodate)...
- // but not other JS (goog.date)
- return 'P0D';
- }
- var totalSign = total < 0 ? '-' : '';
- var ymSign = sign(this._months) !== sign(total) ? '-' : '';
- var daysSign = sign(this._days) !== sign(total) ? '-' : '';
- var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
- return totalSign + 'P' +
- (Y ? ymSign + Y + 'Y' : '') +
- (M ? ymSign + M + 'M' : '') +
- (D ? daysSign + D + 'D' : '') +
- ((h || m || s) ? 'T' : '') +
- (h ? hmsSign + h + 'H' : '') +
- (m ? hmsSign + m + 'M' : '') +
- (s ? hmsSign + s + 'S' : '');
- }