nedb-example.js

// First you have to install NeDB. For this, you can just use `npm install nedb`.

// To create a database, do this:
const Datastore = require("nedb");
const db = new Datastore("database.db");

// Then, to query it, do this:
db.find({ property: requiredValue }, (err, results) => {
  // results will hold the result
});

// To insert an entry, do this:
db.insert(whateverObjectYouWant);

// Finally, to update it, do this:
db.find({ property: requiredValue }, { $set: { property: newValue } }, (err, results) => {
  // this code will happen when it's done updating
});