Question

我正在编写一个程序来演示-使用JOI验证嵌套对象和数组的用户输入验证。

我收到以下错误：arraystring is not defined。我该如何纠正该错误？

app.js

const Joi = require('joi');

const arrayString = ['banana','bacon','cheese'];

const arrayObjects = [{example: 'example1'}, {example: 'example2'}, {example: 'example3'}];

const userInput = {personalInfo: {

    streetAddress : '123987987',
    city : 'cuba',
    state : 'havana'
},

preferences : arraystring };

const personalInfo = Joi.object().keys({

streetAddress : Joi.string().trim().required(),
city : Joi.string().trim().required(),
state : Joi.string().trim().length(2).required()

});

const preferencesSchema = Joi.array().items(Joi.object().keys({

    example: Joi.string().required()

}));

const schema = Joi.object().keys({

    personalInfo : personalInfoSchema,
    preferences : preferencesSchema

});

Joi.validate(userInput,schema,(err,result)=> {

    if(err)
        console.log(err)
    else

        console.log(result);

});

错误：

F:\DatabaseProject9\app.js:14
preferences : arraystring };
              ^

ReferenceError: arraystring is not defined
    at Object.<anonymous> (F:\DatabaseProject9\app.js:14:15)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
PS F:\DatabaseProject9> node app.js
F:\DatabaseProject9\app.js:14
preferences : arraystring };
              ^

ReferenceError: arraystring is not defined
    at Object.<anonymous> (F:\DatabaseProject9\app.js:14:15)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:754:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

Answer 1

您必须将preferences : arraystring替换为preferences : arrayString，因为您声明了arrayString，而不是arraystring

const Joi = require('joi');

const arrayString = ['banana', 'bacon', 'cheese'];

const arrayObjects = [{example: 'example1'}, {example: 'example2'}, {example: 'example3'}];

const userInput = {
    personalInfo: {
        streetAddress: '123987987',
        city: 'cuba',
        state: 'havana'
    },
    preferences: arrayObjects
};

const personalInfoSchema = Joi.object().keys({
    streetAddress: Joi.string().trim().required(),
    city: Joi.string().trim().required(),
    state: Joi.string().trim().required()
});

const preferencesSchema = Joi.array().items(Joi.object().keys({
    example: Joi.string().required()
}));

const schema = Joi.object().keys({
    personalInfo: personalInfoSchema,
    preferences: preferencesSchema

});

Joi.validate(userInput, schema, (err, result) => {

    if (err)
        console.log(err);
    else

        console.log(result);

});

nodejs：未定义arraystring

1 个答案: