npm
npm (Node Package Manager) is the default package manager for Node.js, used to install, manage, and share JavaScript packages and dependencies. It provides a command-line interface for developers to handle libraries, frameworks, and tools in their projects, and hosts a vast public registry of reusable code. npm is essential for modern JavaScript development, enabling efficient dependency management and project setup.
Developers should learn npm because it is the standard tool for managing dependencies in Node.js and JavaScript projects, crucial for installing libraries like Express or React and ensuring consistent environments across teams. It is used in virtually all Node.js applications for tasks such as initializing projects, running scripts, and publishing packages, making it indispensable for web development, backend services, and tooling workflows.