Get week of year in JavaScript like in PHP

Question

How do I get the current weeknumber of the year, like PHP\'s date(\'W\')?

It should be the ISO-8601 week number of year, weeks starting

Answer 1

With Luxon (https://github.com/moment/luxon) :

import { DateTime } from 'luxon';
const week: number = DateTime.fromJSDate(new Date()).weekNumber;