This search for special character at first position in the string

Tokenize a HostName for optional string values. Good for testing whether you are in np, qa, qp, or production environments.

any int, any int with decimal any int with comma delimited any int with comma delimited and decimal

This regular expression parses the uri of an one-time password typically masked by a QR Code. The expression supports the core hotp and totp, name, secret and optional counter (for hotp)

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

NOT ALLOW HANKAKU CHARACTOR

YEAH

Naming

Validates a first middle and last name with hyphens as a single string

Validação: Data d/m/yy d/mm/yyyy dd/m/yyyy dd/mm/yy...

Validador de Data e Hora