example usage of joi object schema validation

joi-usage.js

const Joi = require('joi');

const schema = Joi.object().keys({
  birthyear: Joi.number().integer().min(1900).max(2013),
  test: Joi.string(),
}).without('birthyear', 'test');

let result = Joi.validate({ birthyear: 2013 }, schema);
// No error
result.error ? console.log(result.error) : console.log('schema valid\n');

// Intended error
result = Joi.validate({ birthyear: 2013, test: 'test' }, schema);
result.error ? console.log(JSON.stringify({ error:result.error.details[0].message })) : console.log('schema valid');