Regular Expressions 101

5 digits and no 0 5/4 times

matches http/https/www or without, also validates encoded

Two words, each word first letter capital

Validates an url path that must begin with '/' and not contain special characters or repeated '/' [forward slashes]

ab@ab

Regex validating yyyy-mm-dd or dd-mm-yyyy

Checks for well formed tags. Must include mailto, http or https. Must have quoted href. Other attribues before or after href are accepted. Must be ended with

username is 4-32 characters long no _,- or . at the beginning no _ or _. or . or .. or .- or _- inside no _,- or . at the end ^(?=.{4,32}$)(?![.-])(?!.*[.]{2})[a-zA-Z0-9.-]+(?<![.])$...

Validates any Slack auth tokens.

validate contact email clientside in JS

Validate Email in progress