A Lightweight Date & Time Manipulation JavaScript Library | dayjs

dayjs is a blazing-fast,  ultra-light (2kb) various to the second.js library that helps you parse, validate, manipulate, and show dates and instances in pure JavaScript.

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Install & Import:

# NPM
$ npm install dayjs --save

Import the day’s library into your challenge.

<!-- Node.js -->
var dayjs = require('dayjs');
<!-- Typescript -->
import * as dayjs from 'dayjs'

<!-- Browser -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dayjs.min.js"></script>

Import locals. You can discover all locals right here.

require('dayjs/locale/de')

<!-- Browser --> 
<script src="https://cdn.jsdelivr.net/npm/[email protected]/locale/de.js"></script>

Import plugins if want. All attainable plugins:

• SuperiorFormat
• BuddhistEra
• Calendar
• CustomParseFormat
• DayOfYear
• Duration
• IsBetween
• IsLeapYear
• IsSameOrAfter
• IsSameOrBefore
• IsToday
• IsTomorrow
• IsYesterday
• IsoWeek
• IsoWeeksInYear
• LocaleData
• LocalizedFormat
• MinMax
• QuarterOfYear
• RelativeTime
• ToArray
• ToObject
• UpdateLocale
• UTC
• WeekDay
• weekOfYear
• WeekYear

var PlugiName = require('dayjs/plugin/pluginname')

<!-- Browser -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/plugin/pluginname.js"></script>

Usage:

All the API are much like the Moment.js, simply change the ‘moment’ with ‘dayjs’ as follows. You can discover the full API right here.

// parse
dayjs('2018-12-21') 

// show
dayjs().format('{YYYY} MM-DDTHH:mm:ss SSS [Z] A')

// get & set
dayjs().set('month', 3).month() 

// manipulate
dayjs().add(1, 'year') 

// query
dayjs().isBefore(dayjs())

// set local
dayjs().locale('de')

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