memfs is an in-memory file system designed for Node.js, offering a lightweight and fast alternative to the standard fs module. Ideal for mocking file systems during testing or running code in isolated environments, memfs eliminates the need for actual disk I/O. It provides a familiar API compatible with Node.js's fs, making it easy to integrate into existing projects. Features include support for virtual directories, files, and symbolic links, along with customizable volume implementations. Use it for faster, more predictable tests and sandboxed code execution.
