小编Man*_*anu的帖子

有什么区别assert,expect和should什么时候使用什么？

assert.equal(3, '3', '== coerces values to strings');

var foo = 'bar';

expect(foo).to.equal('bar');

foo.should.equal('bar');

我有两个json对象obj1和obj2,我想合并它们并克里特一个json对象.结果json应该具有来自obj2的所有值和来自obj1的值,这些值在obj2中不存在.

Question:

var obj1 = {
    "name":"manu",
    "age":23,
    "occupation":"SE"
}

var obj2 = {
    "name":"manu",
    "age":23,
    "country":"india"
}

Expected:

var result = {
    "name":"manu",
    "age":23,
    "occupation":"SE",
    "country":"india"
}

我将我的ISODate作为ISODate在mongo中使用,我想以字符串格式使用特定的日期时间格式.

这是ISODate:

ISODate("2020-04-24T11:41:47.280Z")

预期结果:

"2020-04-24T11:41:47.280Z"

我希望在mongodb上发生这种情况,因为我的许多服务都期望采用这种格式,而且我不想在所有服务中进行更改,因为它是一项繁琐的工作.

我创建了一个本地NPM pacakge,我正在尝试使用fallowing命令"npm install ../replacevalue/replacevalue-0.1.1tgz"安装本地软件包.

这给了我一个错误.我的议程是"本地测试我的npm模块而不将它们发布到npmjs.org".

0 info it worked if it ends with ok
    1 verbose cli [ 'D:\\Program Files\\nodejs\\\\node.exe',
    1 verbose cli   'D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
    1 verbose cli   'install',
    1 verbose cli   '../replacevalue/replacevalue-0.1.1tgz' ]
    2 info using npm@1.3.14
    3 info using node@v0.10.22
    4 verbose node symlink D:\Program Files\nodejs\\node.exe
    5 verbose readDependencies using package.json deps
    6 verbose cache add [ '../replacevalue/replacevalue-0.1.1tgz', null ]
    7 verbose cache add name=undefined spec="../replacevalue/replacevalue-0.1.1tgz" args=["../replacevalue/replacevalue-0.1.1tgz",null]
    8 verbose parsed url { protocol: null,
    8 verbose parsed url …

我想使用 Sequelize 进行原始查询并使用替换来避免 sql 注入：

var sequelize = require('sequelize');
sequelize.query("SELECT * FROM table where name =:name ORDER BY :age:direction",
{replacements:{name:"test", age:"age", direction:"desc"}, type: sequelize.QueryTypes.SELECT })  

这将转换为以下查询

SELECT * 
FROM table 
WHERE name = 'test' 
ORDER BY 'age' 'desc'  

由于按列排序有单引号，方向也有单引号，postgres 抛出错误

谁能建议我如何通过替换就位来解决这个问题？

当我试图运行mocha测试时, 由于猫鼬连接处于连接状态,我得到"无法确定服务器状态".

请建议如何处理这种情况.

var mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/test');

console.log('conn ready:  '+mongoose.connection.readyState);

// "conn ready: 2"  i.e connecting for test case as well as from user register form 


var Schema = mongoose.Schema,
    ObjectId = Schema.ObjectId,

    UserSchema = new Schema({

       // schemas

    });


UserSchema.statics.newUser = function (uname, email, pass) {

    var instance = new User();

    instance.uname  = uname;

    instance.email  = email;

    instance.pass   = pass;

    console.log("conn state: "+mongoose.connection.readyState); 

    // "conn state: 2"  i.e connecting for test case. But  1  i.e connected …