Context

• node version: 6 LTS
• joi version: 12.0.x
• environment node
• used with standalone
• any other relevant information: N/A

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

I'd like to populate a user interface with only valid values. I'm using Joi for validation, but is there an interface for getting the valid values out of Joi once it's configured?

https://github.com/hapijs/joi/blob/master/API.md#anyvalidvalue---aliases-only-equal

There's a backdoor way:

const Joi = require('joi');
const constraint = Joi.any().valid([ 'foo', 'bar' ]);
console.log(constraint._valids._set);

which produces

[ 'foo', 'bar' ]

However, that's accessing the internals and I'd rather not depend on that in case the structure changes.

Any suggestions?