In returns true if a specific value is in a list of strings.

Matches returns true if a string value matches a specific regexp pattern.

New is a helper which creates a new Validator instance with an empty errors map.

Tier returns true if a specific value is in a list of strings.

Unique returns true if all string values in a slice are unique.

EmailRegex is a regular expression to validate email addresses.

Validator struct type contains a map of validation errors.