Nodejs - Joi检查字符串是否在给定列表中

Question

我正在使用Joi包进行服务器端验证.
我想检查一个给定的字符串是否在给定的列表中,或者它是否不在给定的列表中.(定义黑名单或值列表的白名单),
如"in"或"notIn"函数.我可以这样做吗？？

var schema = Joi.object().keys({
    firstname: Joi.string().in(['a','b']),
    lastname : Joi.string().notIn(['c','d']),
});

Answer 1

As of Joi v16 valid and invalid no longer accepts arrays, they take a variable number of arguments.

Your code becomes

var schema = Joi.object().keys({
    firstname: Joi.string().valid(...['a','b']),
    lastname: Joi.string().invalid(...['c','d']),
});

Can also just pass in as .valid('a', 'b') if not getting the values from an array (-:

@BadriDerakhshan：如果你谈论的是“@hapi/joi”，那么就不再有“@hapi/joi”了！该软件包上个月已被弃用，Joi 正式回归 Joi。（https://www.npmjs.com/package/@hapi/joi）（`@hapi/joi` 中也存在有效和无效的情况）- 这有点令人沮丧，因为用户必须从 Joi 切换到 @hapi/去年 joi，一年后又回到 Joi :-) (2认同)

Answer 2

怎么样:

var schema = Joi.object().keys({
    firstname: Joi.string().valid(['a','b']),
    lastname : Joi.string().invalid(['c','d']),
});

别名:.allow和.only

和.disallow和.not