Yarn is a package manager for JavaScript. It is a faster and more secure alternative to the npm package manager, which is the default package manager for the JavaScript runtime environment Node.js.
With yarn, you can manage the installation and updates of packages from the npm registry and other package registries such as Bower and yarn itself. Yarn also provides a consistent workflow and a deterministic lockfile, making it easier to manage your project's dependencies.
Yarn is compatible with npm packages, so you can use yarn to install and manage npm packages in your project. In addition, yarn provides features that are not available in npm, such as Workspaces, Plug'n'Play, and Security, making it a better choice for managing JavaScript dependencies.
Overall, yarn is a powerful and reliable tool for managing JavaScript dependencies in your projects. I hope this answers your question! Let me know if you have any other questions.