Awesome

Check Anything 👁

npm i check-anything

Check anything from URLs to Email addresses.

Usage

import { isUrl, isHttpsUrl, isEmail } from 'check-anything'

isHttpsUrl('https://github.com') // true

isUrl('ftp://foo.bar/baz') // true

isEmail('me@github.com') // true

Https vs Http vs FTP vs other URLs

You usually want to use isHttpsUrl instead of isUrl. It will limit the URLs to just regular https:// urls and also has the smallest footprint.

isHttpsUrl

isHttpsUrl is opiniated, it will return false for the following list to keep the source code small and simple.

http URLs
ftp URLs
IP URLs (existing of only numbers)
password URLs
mailto URLs

import { isHttpsUrl } from 'check-anything'

// returns true:
isHttpsUrl('https://github.com')
isHttpsUrl('https://ギットハブ.com') // special characters in domain
isHttpsUrl('https://github.com/ギットハブ') // special characters in URI

// returns false:
isHttpsUrl('http://github.com') // http
isHttpsUrl('ftp://foo.bar/baz') // ftp
isHttpsUrl('https://142.42.1.1/') // ip
isHttpsUrl('https://userid:password@example.com') // password
isHttpsUrl('mailto:me@github.com') // mailto URLs

isUrl

isUrl on the other hand will return true for all of these, except for the mailto: URL.

import { isUrl } from 'check-anything'

// returns true:
isUrl('https://github.com')
isUrl('https://ギットハブ.com') // special characters in domain
isUrl('https://github.com/ギットハブ') // special characters in URI
isUrl('http://github.com') // http
isUrl('ftp://foo.bar/baz') // ftp
isUrl('https://142.42.1.1/') // ip
isUrl('https://userid:password@example.com') // password

// returns false:
isUrl('mailto:me@github.com') // mailto URLs

TODO

Let me know if you are interested in any of these functions, I will consider adding them: