memory-fs 's direct dependencies. Data on all dependencies, including transitive ones, is available via CSV download.| Name | Version | Size | License | Type | Vulnerabilities |
|---|---|---|---|---|---|
| errno | 0.1.8 | 6.17 kB | MIT | prod | |
| readable-stream | 2.3.8 | 25.14 kB | MIT | prod |
Memory-fs is a simple in-memory filesystem implemented in JavaScript. It stores data within a JavaScript object, functioning analogously to a regular file system. This can be particularly useful in scenarios where persistence of data is not required, such as caching files or during testing operations.
Here's a basic usage example of memory-fs in JavaScript:
First, you'll need to install it with npm (npm install --save memory-fs).
After that, you can utilize memory-fs in your code as follows:
//Require memory-fs
var MemoryFileSystem = require("memory-fs");
//Create a new memory file system
var fs = new MemoryFileSystem();
//Creating a directory
fs.mkdirpSync("/a/test/dir");
//Creating a file and writing to it
fs.writeFileSync("/a/test/dir/file.txt", "Hello World");
//Reading from the file
fs.readFileSync("/a/test/dir/file.txt");
//You can also delete files asynchronously
fs.unlink("/a/test/dir/file.txt", function(err) {
//Handle error
});
//Checking contents of a directory
fs.readdirSync("/a/test");
//Checking the type of item: file or directory
fs.statSync("/a/test/dir").isDirectory();
//Removing a directory
fs.rmdirSync("/a/test/dir");
//Creating a directory with Windows path style
fs.mkdirpSync("C:\\use\\windows\\style\\paths");
Please note that memory-fs provides both synchronous and asynchronous function variants for file system operations.
Documentation for memory-fs is currently somewhat sparse. The README file from its GitHub repository (https://github.com/webpack/memory-fs) serves as the primary source of available documentation. You may find the common JavaScript File System method names and conventions to be a useful guide, as memory-fs implements these standards.
