one-day

A javascript common use date utilities and compatible with typescript.

Install

npm install one-day --save

yarn add one-day

Usage

calDate

calcDate(date: Date, calcType: 'add' | 'subtract', unitType: OpUnitType, value: number): Dayjs

Add or Subtract date by unit type.

Example

console.log(calcDate(new Date(date), 'add', 'day', 10).format('DD-MMM-YYYY'));
//expected output: "15-Apr-2020"

dayToTime

dayToTime(day: number, type?: 'ms' | 's' | 'm' | 'h'): number

Convert from day(s) to millisecond, second, minute and hour.

Example

console.log(dayToTime(1, 'h'));
//expected output: 24

fromNow

fromNow(date?: ConfigType): string

Returns the string of relative time from now

Example

console.log(fromNow(new Date()));
// expected output: "a second ago"

getFirstDayOfMonth

getFirstDayOfMonth(date: Date, type: 'Previous' | 'Current' | 'Next'): Dayjs

Get the first day of the month.

Example

const date = '2020-04-05';
const format = 'DD-MMM-YYYY';

console.log(getFirstDayOfMonth(new Date(date), 'Previous').format(format));
// expected output: '01-Mar-2020'

console.log(getFirstDayOfMonth(new Date(date), 'Current').format(format));
// expected output: '01-Apr-2020'

// Next month
console.log(getFirstDayOfMonth(new Date(date), 'Next').format(format));
// expected output: '01-May-2020'

getLastDayOfMonth

getLastDayOfMonth(date: Date, type: 'Previous' | 'Current' | 'Next'): Dayjs

Get the last day of the month.

Example

const date = '2020-04-05';
const format = 'DD-MMM-YYYY';

console.log(getLastDayOfMonth(new Date(date), 'Previous').format(format));
// expected output: '31-Mar-2020'

console.log(getLastDayOfMonth(new Date(date), 'Current').format(format));
// expected output: '30-Apr-2020'

console.log(getLastDayOfMonth(new Date(date), 'Next').format(format));
// expected output: '31-May-2020'

previousMonth

previousMonth(format?: string);

Get the first and last day of previous month.

Example

// '2020-04-05';
console.log(previousMonth());
// expected output: { from: '01-Mar-2020', to: '31-Mar-2020' }

previousWeek

previousWeek(format?: string);

Get the first and last day of previous week.

Example

// '2020-05-19';
console.log(previousWeek());
// expected output: { from: '10-May-2020', to: '16-May-2020' }

quarter

previousWeek(format?: string);

Gets the quarter of the year.

Example

// '2020-05-19';
// Get Current Quarter
quarter.current();
// expected output: { from: '01-Apr-2020', to: '30-Jun-2020' }

// Get Previous Quarter
quarter.previous();
// expected output: { from: '01-Jan-2020', to: '31-Mar-2020' }

// Get Specific Quarter
quarter.quarter(1);
// expected output: { from: '01-Jan-2020', to: '31-Mar-2020' }

smartTZ

smartTZ(utc: string, options?: smartTZOptions): string | Dayjs

Convert UTC date to specific time zone.

Example

const format = 'DD-MM-YYYY HH:mm:ss';
const UTCString = '2019-07-25T16:00:00.48Z';

smartTZ(UTCString, { timezone: 'Asia/Jakarta', format: format });
// expected output: 25-07-2019 23:00:00

thisMonth

thisMonth((format?: string));

Get the first and last day of current month.

Example

// 2020-05-19
thisMonth();
// expected output: { from: '01-May-2020', to: '31-May-2020' }

thisWeek

thisWeek((format?: string));

Get the first and last day of current week.

Example

// 2020-05-19
thisWeek();
// expected output: { from: '17-May-2020', to: '23-May-2020' }

thisYear

thisYear((format?: string));

Get the first and last day of current year.

Example

// 2020-05-19
thisYear();
// expected output: { from: '01-Jan-2020', to: '31-Dec-2020' }

today

today((format?: string));

Get today date.

Example

// 2020-05-19
today();
// expected output: { from: '19-May-2020', to: '19-May-2020' }

yesterday

today((format?: string));

Get yesterday date.

Example

// 2020-05-19
yesterday();
// expected output: { from: '18-May-2020', to: '18-May-2020' }