Handlebars help?

Question

Handlebars

I'm making my first blog, but I ran into a problem,
Sends posts to the main page

app.get('/', (req,res) => {
    PostModel.find((err,doc) => {   if(err) throw err;
         res.render('index', {posts : doc}); console.log(doc); });
 
});

index.hbs

<h2>Добро пожаловать на мой блог</h2>
    <div class="posts">
        {{#each posts}}

        {{#each this}}

        <h4>{{this.title}}</h4>
        <p>{{this._id}}</p>
         

        {{/each}}
        
        {{/each}}
    </div>

Outputs:

MongoDb Composition:

Why are _id output 2 times?

Answer 1

What is the {{#each this}}purpose of this template?