strftime-js

Method that enable formatted output(like strftime in Python) from date instance.

Installation

Use yarn

yarn add strftime-js

or npm

npm install strftime-js

Usage

Patch method to instance

import { patchInstance } from 'data-formatter'
 
const instance = new Date()
console.log(patchInstance(instance).toFormatted('Today is %x')) // -> Today is 1/1/2020

Patch method to constructor

import { patch } from 'data-formatter'
 
patch()
const instance = new Date()
console.log(instance.toFormatted('Today is %x')) // -> Today is 1/1/2020

Reference

Code	Meaning	Example
%a	Weekday as abbreviated name.	Mon
%A	Weekday as full name.	Monday
%w	Weekday as a decimal number, where 0 is Sunday and 6 is Saturday.	1
%d	Day of the month.	30
%b	Month as abbreviated name.	Sep
%B	Month as full name.	September
%m	Month as a decimal number, where 0 is January and 11 is December.	9
%y	Year without century as a decimal number.	13
%Y	Year with century as a decimal number.	2013
%H	Hour (24-hour clock) as a decimal number.	07
%I	Hour (12-hour clock) as a decimal number.	07
%p	Locale’s equivalent of either AM or PM.	AM
%M	Minute as a decimal number.	06
%S	Second as a decimal number.	05
%j	Day of the year as a decimal number.	273
%U	Week number of the year (Sunday as the first day of the week) as a decimal number. All days in a new year preceding the first Sunday are considered to be in week 0.	39
%W	Week number of the year (Monday as the first day of the week) as a decimal number. All days in a new year preceding the first Monday are considered to be in week 0.	39
%c	Locale’s appropriate date and time representation.	Mon Sep 30 07:06:05 2013
%x	Locale’s appropriate date representation.	09/30/13
%X	Locale’s appropriate time representation.	07:06:05
%%	A literal '%' character.	%