Regular Expressions 101

matches most fully qualified domain addresses with ability to match sub-domains,

valid mails abc@yahoo.com abc-100@yahoo.com abc.100@yahoo.com abc111@abc.com abc-100@abc.net...

Validación de correo UNAL Validación del correo de la universidad Nacional mediante el uso de expresiones regulares.

Regex for matching Japanese characters

Validate email

Solves the practice problem from https://www.sitepoint.com/learn-regex/

Supposedly 99.99% effective way to capture most potentially-valid email addresses in .NET syntax.

check valid email

Validates a password that has 1 lowercase character, 3 uppercase characters, 1 special character, 1 number and the total length of 8 characters. These are minimums of course, it can have more of each.

This expression validates if a string is a YouTube video. Note this will not work for playlists.

This expression validates if a string is a YouTube video. Note this will not work for playlists.

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just a us mobile no validator

(?=.[A-Za-z])(?=.\d)[A-Za-z\d]{8,}