🫳🏼 Packages

• Script: A piece of code executed once with the node command. It imports modules
• A module is a single file that contains JavaScript code.
• A package is a directory containing modules and a package.json file.
  • file provides metadata about the package, such as its name, version, and dependencies.
• package manager : automates managing packages
• package-lock.json records exact version of each installed package & dependencies .It helps to build identical dependency tree

📳 Core Modules

• node:buffer: Handles binary data.
• node:child_process: Runs shell commands or forks processes.
• node:cluster: Provides load balancing across workers.
• node:crypto: Offers cryptographic operations.
• node:fs: Interacts with the file system.
• node:os: Accesses OS level data (CPU, memory, etc.).
• node:zlib: Provides compression and decompression (gzip, deflate, etc.).

• node:http node:net: Creates HTTP/ TCP servers and clients.
• node:url: Parses and formats URLs.