Get unique and sequential current week identifier for given valid Date string format or Date object. Week #1 is starting on January 05, 1970.

Install

npm i --save week-identifier
npm test
week-identifier --help

API

For more use-cases see the tests

weekIdentifier

Get unique and sequential current week identifier for given valid Date string format

• [date] {String} every valid Date-ish string format
• return {Number}

Example:

var weekIdentifier = require('week-identifier');

 // august 12, 2016
weekIdentifier();
//=> 2432

weekIdentifier('January 05, 1970 00:00:00');
//=> 1

weekIdentifier('January 12, 1970 00:00:00');
//=> 2

weekIdentifier(new Date('August 12, 2016'));
//=> 2432

weekIdentifier('08/12/2016');
//=> 2432

weekIdentifier('August 12, 2016');
//=> 2432

weekIdentifier(new Date('August 19, 2016'));
//=> 2433

weekIdentifier.dateFromWeek

Get monday date of the given week identifier or January 5, 1970 00:00:00 if weekIdentifier is <= 1.

• [number] {String} every valid number > 0
• return {Date}

Example:

var weekIdentifier = require('week-identifier');

weekIdentifier.dateFromWeek(2433);
//=> August 15, 2016 00:00:00

weekIdentifier.dateFromWeek(1);
//=> January 05, 1970 00:00:00

CLI

You can just run week-identifier --help for more information

License

Copyright (c) 2016 [Clément Billiot], contributors.
Released under the MIT license.