Context

• node version: 4.X
• joi version: 9.0.4
• environment (node, browser): node
• used with (hapi, standalone, ...): hapi
• any other relevant information:

What are you trying to achieve or the steps to reproduce ?

We had a developer, who after working with Joi.object for a couple validations assumed that Joi.string would also have a default behavior when passed an argument (this default behavior being to enforce a max). I realize this assumed behavior is not documented anywhere, but I think it would be nice if Joi.string and other similar validators that don't accept an argument would warn you of that if you pass them something.

const schema = {
  messageText: Joi.string(1024).required()
};

Which result you had ?

Joi.string silently accepted the argument, doing nothing with it.

What did you expect ?

A Joi error indicating that Joi.string does not accept any arguments