is-my-date-valid

A date validator, with support for custom formats.

Installation

npm install --save is-my-date-valid

Usage

const validator = require('is-my-date-valid')
const validate = validator({ format: 'YYYY-MM-DD' })

validate('1992-12-02') // true

validate('1992/12/02') // false
validate('1992-18-02') // false

validate(['hello', 'world']) // TypeError: expected string

API

validator(opts)

Returns a new validator, supported options:

• format: The format of the date, see the table below for valid tokens

validate(str)

Validate a date, returns true if the date is valid, false otherwise.

Format tokens

Input|Example|Description -----|-----|----- YYYY|2014|4 or 2 digit year YY|14|2 digit year Y|-25|Year with any number of digits and sign Q|1..4|Quarter of year M MM|1..12|Month number MMM MMMM|Jan..December|Month name D DD|1..31|Day of month Do|1st..31st|Day of month with ordinal DDD DDDD|1..365|Day of year X|1410715640.579|Unix timestamp x|1410715640579|Unix ms timestamp gggg|2014|Locale 4 digit week year gg|14|Locale 2 digit week year w ww|1..53|Locale week of year e|0..6|Locale day of week ddd dddd|Mon...Sunday|Day name GGGG|2014|ISO 4 digit week year GG|14|ISO 2 digit week year W WW|1..53|ISO week of year E|1..7|ISO day of week H HH|0..23|24 hour time h hh|1..12|12 hour time used with a A. a A|am pm|Post or ante meridiem (Note the one character a p are also considered valid) m mm|0..59|Minutes s ss|0..59|Seconds S SS SSS|0..999|Fractional seconds Z ZZ|+12:00|Offset from UTC as +-HH:mm, +-HHmm, or Z