npm i node-data-baseor (case you have yarn):
yarn add node-data-baseconst startNodeDataBase = require('node-data-base')
const db = startNodeDataBase()const dbBooks = db.tryLoad('books').orStartWith([])
dbBooks.setValue(v => [...v, { autor: 'platão', sells: 10000 }])
dbBooks.setValue(v => v.map(v => ({ ...v, sells: 99999 })))
dbBooks.save()
console.log(dbBooks.value())if you want to change the root path use this:
const startNodeDataBase = require('node-data-base')
const db = startNodeDataBase({ rootPath: 'dataBase' })