How to create database from node js on mongoose. ?

Here, we will write a program to create database in mongoose from node js, considering that the connection has already been mad.

app.js

const mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/myDatabase', { useNewUrlParser: true });
const mySchema = new mongoose.Schema({
    name: String,
    age: Number
  });
  const MyModel = mongoose.model('MyModel', mySchema);