Installation

npm i datility --save

yarn add datility

pnpm add datility

Usage

All methods are accessible via Date object. With this line all methods, properties and so on added to the Date object.

import "datility";

console.log(new Date(2022, 5, 3).addDays(1)); // => Sat Jun 04 2022 00:00:00 GMT+0300 (GMT+03:00)

Also, can import methods from the specified category:

import "datility";

manipulate category

import "datility/manipulate";
import "datility/manipulate/add";
import "datility/manipulate/subtract";
import "datility/manipulate/reference";

comparison category

import "datility/comparison";

working-days category

import "datility/working-days";

Methods

Manipulate Category

Add Methods

addDays(days: number): Date

Add day(s) to the Date.

new Date(2022, 6, 9).addDays(3); // => Tue Jul 12 2022 00:00:00 GMT+0300 (GMT+03:00)

addWorkingDays(days: number): Date

Add working day(s) to the Date.

new Date(2022, 6, 9).addWorkingDays(3); // => Wed Jul 13 2022 00:00:00 GMT+0300 (GMT+03:00)

addWeeks(months: number): Date

Add week(s) to the Date.

new Date(2022, 6, 9).addWeeks(3); // => Sat Jul 30 2022 00:00:00 GMT+0300 (GMT+03:00)

addMonths(months: number): Date

Add month(s) to the Date.

new Date(2022, 6, 9).addMonths(3); // => Sun Oct 09 2022 00:00:00 GMT+0300 (GMT+03:00)

addYears(years: number): Date

Add year(s) to the Date.

new Date(2022, 6, 9).addYears(3); // => Wed Jul 09 2025 00:00:00 GMT+0300 (GMT+03:00)

Subtract Methods

subtractDays(days: number): Date

Subtract day(s) from the Date.

new Date(2022, 6, 9).subtractDays(3); // => Wed Jul 06 2022 00:00:00 GMT+0300 (GMT+03:00)

subtractWorkingDays(days: number): Date

Subtract working day(s) from the Date.

new Date(2022, 6, 8).subtractWorkingDays(4); // => Mon Jun 27 2022 00:00:00 GMT+0300 (GMT+03:00)

subtractWeeks(months: number): Date

Subtract week(s) from the Date.

new Date(2022, 6, 9).subtractWeeks(3); // => Sat Jun 18 2022 00:00:00 GMT+0300 (GMT+03:00)

subtractMonths(months: number): Date

Subtract month(s) from the Date.

new Date(2022, 6, 9).subtractMonths(3); // => Sat Apr 09 2022 00:00:00 GMT+0300 (GMT+03:00)

subtractYears(years: number): Date

Subtract year(s) from the Date.

new Date(2022, 6, 9).subtractYears(3); // => Tue Jul 09 2019 00:00:00 GMT+0300 (GMT+03:00)

Reference Methods

clone(): Date

Clone the Date by value.

const date = new Date(2022, 5, 9);
console.log(date, date.clone().addDays(10)); // => Sat Jun 09 2022 00:00:00 GMT+0300 (GMT+03:00), Sat Jun 19 2022 00:00:00 GMT+0300 (GMT+03:00)

Comparison Category

isBefore(given: Date): boolean

Check if the Date is before the given Date.

new Date(2022, 5, 9).isBefore(new Date(2022, 5, 10)); // => true
new Date(2022, 5, 9).isBefore(new Date(2022, 5, 9)); // => false
new Date(2022, 5, 9).isBefore(new Date(2022, 5, 8)); // => false

isSame(given: Date): boolean

Check if the Date is the same as the given Date.

new Date(2022, 5, 9).isSame(new Date(2022, 5, 9)); // => true
new Date(2022, 5, 9).isSame(new Date(2022, 5, 10)); // => false

isAfter(given: Date): boolean

Check if the Date is after the given Date.

new Date(2022, 5, 9).isAfter(new Date(2022, 5, 8)); // => true
new Date(2022, 5, 9).isAfter(new Date(2022, 5, 9)); // => false
new Date(2022, 5, 9).isAfter(new Date(2022, 5, 10)); // => false

isSameOrBefore(given: Date): boolean

Check if the Date is the same or before the given Date.

new Date(2022, 5, 9).isSameOrBefore(new Date(2022, 5, 10)); // => true
new Date(2022, 5, 9).isSameOrBefore(new Date(2022, 5, 10)); // => true
new Date(2022, 5, 9).isSameOrBefore(new Date(2022, 5, 8)); // => false

isSameOrAfter(given: Date): boolean

Check if the Date is the same or after the given Date.

new Date(2022, 5, 9).isSameOrAfter(new Date(2022, 5, 8)); // => true
new Date(2022, 5, 9).isSameOrAfter(new Date(2022, 5, 9)); // => true
new Date(2022, 5, 9).isSameOrAfter(new Date(2022, 5, 10)); // => false

isBetween(start: Date, end: Date): boolean

Check if the Date is between the given start and end Date.

new Date(2022, 5, 9).isBetween(new Date(2022, 5, 8), new Date(2022, 5, 10)); // => true
new Date(2022, 5, 9).isBetween(new Date(2022, 5, 8), new Date(2022, 5, 9)); // => false
new Date(2022, 5, 9).isBetween(new Date(2022, 5, 8), new Date(2022, 5, 8)); // => false

isPast(given: Date): boolean

Check if the Date is past the given Date.

new Date(2022, 5, 9).isPast(new Date(2022, 5, 10)); // => false
new Date(2022, 5, 9).isPast(new Date(2022, 5, 9)); // => false
new Date(2022, 5, 9).isPast(new Date(2022, 5, 8)); // => true

isFuture(given: Date): boolean

Check if the Date is future the given Date.

new Date(2022, 5, 9).isFuture(new Date(2022, 5, 10)); // => true
new Date(2022, 5, 9).isFuture(new Date(2022, 5, 9)); // => false
new Date(2022, 5, 9).isFuture(new Date(2022, 5, 8)); // => false

isDay(dayName: DayName): boolean

Check if the Date is the given dayName.

new Date(2022, 5, 5).isDay("Sunday"); // => true
new Date(2022, 5, 6).isDay("monday"); // => true
new Date(2022, 5, 7).isDay("Tue"); // => true
new Date(2022, 5, 8).isDay("wed"); // => true
new Date(2022, 5, 9).isDay("Saturday"); // => false

Working Days Category

isWorkingDay(): boolean

Check if the Date is a working day.

new Date(2022, 5, 5).isWorkingDay(); // => false
new Date(2022, 5, 6).isWorkingDay(); // => false
new Date(2022, 5, 8).isWorkingDay(); // => true

isWeekend(): boolean

Check if the Date is a weekend day.

new Date(2022, 5, 5).isWeekend(); // => true
new Date(2022, 5, 6).isWeekend(); // => true
new Date(2022, 5, 8).isWeekend(); // => false

addWorkingDays(days: number): Date

Add days working days to the Date.

new Date(2022, 5, 3).addWorkingDays(1); // => Sat Jun 06 2022 00:00:00 GMT+0300 (GMT+03:00)
new Date(2022, 5, 3).addWorkingDays(2); // => Sun Jun 07 2022 00:00:00 GMT+0300 (GMT+03:00)
new Date(2022, 5, 3).addWorkingDays(3); // => Mon Jun 08 2022 00:00:00 GMT+0300 (GMT+03:00)

subtractWorkingDays(days: number): Date

Subtract days working days to the Date.

new Date(2022, 5, 6).subtractWorkingDays(1); // => Fri Jun 03 2022 00:00:00 GMT+0300 (GMT+03:00)
new Date(2022, 5, 6).subtractWorkingDays(2); // => Thu Jun 02 2022 00:00:00 GMT+0300 (GMT+03:00)
new Date(2022, 5, 6).subtractWorkingDays(3); // => Wed Jun 01 2022 00:00:00 GMT+0300 (GMT+03:00)

License

MIT License