Moment Loyall

It's an extended version of moment-timezone package with extra functions.

Moment.js

It extends the moment-timezone, so we have all the built in functions and a few more.

How to use it

$ npm i -S moment-loyall

Then just import as a normal module

import moment from "moment-loyall";

moment();

Holidays - isHoliday

Moment Loyall has all Brazil National Holidays and São Paulo specific holidays for the stock marketing. The parameter Holiday Calendar is required, see the avaiable list bellow:

• "sp": B3 and National Holidays
• "brasil": Only National Holidays
• "us": United States National Holidays
• "mexico": Mexico National Holidays
• "uk": United Kingdom National Holidays
• "argentina": Argentina National Holidays
• "france": France National Holidays
• "italy": Italy National Holidays
• "swiss": Switzerland National Holidays
• "spain": Spain National Holidays

const isHoliday = moment("2020-12-25").isHoliday("brasil");
// isHoliday = true

Holidays - getHolidays

Gets an array of holidays

const holidays = moment().getHolidays("sp");
// holidays = [ '2020-12-25', ...]

Business Day - isBusinessDay

Check if date is a business day

const holidays = moment("2020-04-14").isBusinessDay("brasil");
// true

Business Day - nextBusinessDay

Get date next business day

const holidays = moment("2020-04-14").nextBusinessDay("brasil");
// 2020-04-15

Business Day - prevBusinessDay

Get date previous business day

const holidays = moment("2020-04-14").nextBusinessDay("brasil");
// 2020-04-13

Business Day - businessAdd

Add period off business day form the date

const holidays = moment("2020-04-14").businessAdd(2, "days", "brasil");
// 2020-04-16

Business Day - businessSubtract

Subtract period off business day form the date

const holidays = moment("2020-04-10").businessSubtract(2, "days", "brasil");
// 2020-04-16

Business Day - businessDiff

Get the number off business day between two dates

const holidays = moment("2020-04-10").businessDiff(moment("2020-04-01"), "brasil");
// 8

/**
 * To return an array of dates you need to pass a third argument
 */
const holidays = moment("2020-04-10").businessDiff(moment("2020-04-01"), "brasil", true);
// [ '2020-04-01',
//  '2020-04-02',
//  '2020-04-03',
//  '2020-04-06',
//  '2020-04-07',
//  '2020-04-08',
//  '2020-04-09',
//  '2020-04-13' ]

Relative dates - moment.parseRelativeDate

Parse D-* notation (D0, D-1, D+1, etc)

// Suppose today is 2020-04-14
const targetDate = moment.parseRelativeDate("D0");
// 2020-04-14

const targetDate2 = moment.parseRelativeDate("D+1");
// 2020-04-15

const targetDate3 = moment.parseRelativeDate("D-2");
// 2020-04-12

// ISO dates are also supported
const targetDate4 = moment.parseRelativeDate("2020-05-15");
// 2020-05-15

Relative dates - moment.parseRelativeBusinessDate

Parse D-* notation (D0, D-1, D+1, etc) using only business days

// Suppose today is 2020-04-14
const targetDate = moment.parseRelativeBusinessDate("D0", "brasil");
// 2020-04-14

const targetDate2 = moment.parseRelativeBusinessDate("D+1", "brasil");
// 2020-04-15

const targetDate3 = moment.parseRelativeBusinessDate("D-2", "brasil");
// 2020-04-10

// ISO dates are also supported
const targetDate4 = moment.parseRelativeBusinessDate("2020-05-15", "brasil");
// 2020-05-15