The most commonly used modules in Node.js include: File system module for file operations Network module for network communication Stream module for processing data streams Database module for interacting with the database Other practical modules , such as encryption, query string parsing and HTTP framework
Node.js Common modules
Node.js Yes A popular JavaScript runtime environment that provides developers with a rich module ecosystem. These modules provide a variety of functionality, from file system operations to network communications to database management. This article will introduce some of the most commonly used modules in Node.js.
File system module
- fs: Provides reading and writing functions for files and directories.
- path: Provides path operation and file path parsing functions.
Network module
- http: Used to create and manage HTTP servers and clients.
- https: Used to create and manage HTTPS servers and clients.
- net: Used to create and manage TCP and UDP sockets.
Stream module
- stream: Provides a basic interface for reading and writing streams.
- fs.ReadStream: A readable stream for reading data from a file.
- fs.WriteStream: A writable stream that writes data to a file.
Database module
- mongoose: Used to interact with the MongoDB database.
- sequelize: Used to interact with relational databases (such as MySQL, PostgreSQL).
- redis: Used to interact with the Redis key-value database.
Other commonly used modules
- crypto: Used to encrypt and decrypt data.
- querystring: Used to parse and format query strings.
- util: Provides utility functions such as type checking and formatting.
- express: A web framework for creating HTTP applications.
- body-parser: A middleware for parsing the body of HTTP requests.
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