Interface ErrorMessage

A single error message. If an error exists on a field, this will be in the errors object under the field's key. Otherwise, it is undefined.

See

• ErrorStrings for definition of error messages
• UseFormOptions.errorMessages for global error messages (for the entire form)
• FieldOptions.required for defining a field as required
• FieldOptions.minLength for defining a minimum length for the field
• FieldOptions.maxLength for defining a maximum length for the field
• FieldOptions.validate for defining a custom validation function