Event-driven architecture: Node.js

 Event-driven architecture: Node.js is built on an event-driven architecture, which means that it can handle multiple events simultaneously. It uses callbacks to handle events, which are functions that get called when an event occurs. Here's an example of how to use callbacks in Node.js:

javascript

const fs = require('fs');

fs.readFile('/path/to/file', (err, data) => {

  if (err) throw err;

  console.log(data);

});