var DB = require("jsondbnode");
const Books = DB.model // example model
const DBCONFIG = DB.manager

// set DB.json path
DBCONFIG.configDB({ dbPath: "./db.json" }) 

// delete all data from DB.json
DBCONFIG.resetDB().then(console.log).catch(console.error)

new Books({
    name: "The lord of the rings",
    create_at: new Date(1954, 6, 28)
}).save().then((newBook) => {
    console.log(newBook)
    newBook.create_at = new Date(1954, 6, 29)
    newBook.save().then(console.log).catch(console.error)
}).catch(console.error)