Node.js 获取方法？ 这个“Blog.find().sort()”是什么意思？

Question

I was in node.js tutorial and teacher writed this code

app4.get('/',(req,res)=>{
    Blog.find().sort({createdAt :1})
        .then((result)=>{
            res.render('index',{
                title: 'Anasayfa', blogs:result})
        })
        .catch((err)=>{
            console.log(err)
        })
})

I didnt understand that what does "Blog" does and means in there, is it a object from a module or something else? I asked teacher but he didn't response to me. When I execute that code I receive error "Blog is not defined" that means first I gotto define Blog but how to define? By bulding a module or file?

I appreciate every response, thankk you for your time

Answer 1

Unfortunately, with the code shown, we don't know what it means either. :-)

Whomever wrote the code will have to explain. However, we can say that this type of pattern is typical for a database backend.

Blog is probably a database model . Think of it like a class or type of object. By calling Blog.find() , you're likely fetching all the blogs (or blog articles, whatever it is). Then calling .sort() on that result set, you're sorting by the createdAt attribute.