memfs
's direct dependencies. Data on all dependencies, including transitive ones, is available via CSV download.Name | Version | Size | License | Type | Vulnerabilities |
---|---|---|---|---|---|
fs-monkey | 1.0.5 | 6.59 kB | Unlicense | prod |
Memfs, formally known as in-memory file system, is a useful utility for Node.js and browsers that mimics the Node's fs API. Essentially, it allows users to interact with a filesystem that's maintained entirely in the memory. Memfs provides a high-speed alternative for file handling, making it a great tool for operations requiring temporary storage or high I/O operations where the physical disk latency becomes a bottleneck.
Installing and using memfs is easy. Just make sure you have Node.js installed in your environment and then run the following command in your terminal:
npm i memfs
This will install memfs in your Node.js project. It is also important to note that memfs follows Node's fs API, thus you can work with it in a similar fashion as you would with Node's native fs module.
Here's an example of how to create an in-memory filesystem and write/read from it using memfs:
const { volume } = require('memfs');
// Write to in-memory filesystem
volume.writeFileSync('/hello.txt', 'Hello, World!');
// Read from in-memory filesystem
const data = volume.readFileSync('/hello.txt', 'utf-8');
console.log(data); // Output: Hello, World!
In short, you can leverage memfs functions as you would with standard Node.js filesystem functions, but without the latency of physical disk operations.
The comprehensive documentation for memfs is stored within the repository itself. You can access the full detailed memfs documentation by visiting the following link: In-memory Node.js fs
API. It includes detailed explanations and guidelines about different features of memfs. Additionally, the repository also contains experimental adapters for further filesystem functionalities and useful utilities such as crudfs
for CRUD-like filesystem abstractions, casfs
for content addressable storage filesystem abstractions, and a snapshot utility for directories. If you want to see memfs in action, you can dive into the demo examples provided in the repository.