Какова роль менеджера пакетов npm в управлении проектами на JavaScript?

The npm (Node Package Manager) package manager plays a key role in managing JavaScript projects, providing convenient dependency management. It allows:

• Installing, updating, and removing third-party libraries and modules.
• Managing package versions to avoid conflicts.
• Automating scripts for building, testing, and running the project via the package.json file.
• Making the project reproducible on different machines by locking dependencies.

Example of installing a package and using it:

npm install express

const express = require('express');
const app = express();
app.listen(3000, () => console.log('Server started'));