You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
876 B
16 lines
876 B
3 years ago
|
import toDate from '../../toDate/index.js';
|
||
|
|
import startOfUTCWeek from '../startOfUTCWeek/index.js';
|
||
|
|
import startOfUTCWeekYear from '../startOfUTCWeekYear/index.js';
|
||
|
|
import requiredArgs from '../requiredArgs/index.js';
|
||
|
|
var MILLISECONDS_IN_WEEK = 604800000; // This function will be a part of public API when UTC function will be implemented.
|
||
|
|
// See issue: https://github.com/date-fns/date-fns/issues/376
|
||
|
|
|
||
|
|
export default function getUTCWeek(dirtyDate, options) {
|
||
|
|
requiredArgs(1, arguments);
|
||
|
|
var date = toDate(dirtyDate);
|
||
|
|
var diff = startOfUTCWeek(date, options).getTime() - startOfUTCWeekYear(date, options).getTime(); // Round the number of days to the nearest integer
|
||
|
|
// because the number of milliseconds in a week is not constant
|
||
|
|
// (e.g. it's different in the week of the daylight saving time clock shift)
|
||
|
|
|
||
|
|
return Math.round(diff / MILLISECONDS_IN_WEEK) + 1;
|
||
|
|
}
|