Npm fs documentation. 16, last published: a year ago.

Npm fs documentation. Jul 12, 2025 · In NodeJS, the fs. writeFile() API. Type FS The single way to manipulate files in NodeJS. It is a drop in replacement for fs. These operations are not synchronized or threadsafe. The free npm Registry has become the center of JavaScript code sharing, and with more than two million packages, the largest software registry in the world. js core fs module, but when using fs. It needs to validate file types, store them securely, generate thumbnails, and potentially integrate with an object storage service like AWS S3. js which responds with 'Hello, World!': Commands in this document start with $ or > to replicate how they would appear in a user's terminal. 5, last published: 4 years ago. Start using @npmcli/fs in your project by running `npm i @npmcli/fs`. x 22. x 13. Jun 15, 2019 · The fs module, being one of the most basic to understand and use in Node. All file system operations can have synchronous and asynchronous forms depending on user requirements Asynchronous vs Synchronous Jun 21, 2025 · The Unsung Hero: Mastering Node. js v25. Compo The parameters for this callback are not consistent with other Node. The fs module in Node. rename (): renames the specified file II. We use The Common Sense Versioning for this project. The options object is passed to fs. For detailed information, see the documentation of the asynchronous version of this API: readFile. 18. Sep 23, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. There are 74998 other projects in the npm registry using fs-extra. writeFile to write data to a file and replace the file if it already exists, fs. a streaming interface for archive generation. Working with files in Node. Start using archiver in your project by running `npm i archiver`. The promise APIs use the underlying Node. Start using cors in your project by running `npm i cors`. readFileSync() is platform-specific. It allows you to read from and write to files, create directories, delete files, and more. Start using fs-stream in your project by running `npm i fs-stream`. fs file extend node fs origin methods, and overwrite some methods with next list chart See full list on node. Getting Started Overview Vite (French word for "quick", pronounced /vit/, like "veet") is a build tool that aims to provide a faster and leaner development experience for modern web projects. You don't Package manager programs such as dpkg, rpm, and npm will hopefully find it possible to build native packages from Node. js The simplest way to read a file in Node. There are 19 other projects in the npm registry using @npmcli/fs. In the following, we give a suggested directory structure that could work: Incremental utilities for NodeJS File System API. js's file system module? Learn from these examples how the module's APIs help you use files and directories. js fs package. fs file file system copy directory extra mkdirp mkdir mkdirs recursive json read write delete View more To avoid malicious use, npm is hanging on to the package name, but loosely, and we'll probably give it to you if you want it. General file operations. There are 20694 other projects in the npm registry using cors. 0, last published: 3 days ago. The fs/promises API provides asynchronous file system methods that return promises. Just glob. js threadpool to perform file system operations off the event loop thread. 1-security, last published: 9 years ago. js, from handling files and editing metadata to working with links and directories. Start using fs in your project by running `npm i fs`. In-memory file-system with Node's fs API. npm run lint: runs the linter (standard) npm run unit: runs the unit tests npm run unit-esm: runs tests for fs-extra/esm exports npm test: runs the linter and all tests When running unit tests, set the environment variable CROSS_DEVICE_PATH to the absolute path of an empty directory on another device (like a thumb drive) to enable cross-device move tests. Apr 27, 2025 · The File System (fs) module is a built-in core module in Node. 4, last published: 2 months ago. jscallbacks. 1 million packages were reported being listed in the npm registry, making it the biggest single language code repository on Earth, and you can be sure there is a package for (almost!) everything. 1. 0, last published: 3 years ago. The node:stream module provides an API for implementing the stream interface. 5, last published: 7 years ago. js stands for File System, and it allows developers to interact with the file system, enabling tasks such as reading, writing, and managing files and directories. x 12. Monkey patches for file system related things. js 1. Start using fs-js in your project by running `npm i fs-js`. exists () callback has only one boolean parameter. js, handling the file system efficiently is crucial. Sep 9, 2021 · In this guide, walk through file processing in Node. There are 4047 other projects in the npm registry using jsonfile. To migrate from the legacy react-native-fs install this fork Native filesystem access for react-native. js to manipulate files and directories in an efficient and flexible way. js File System module is used to handle file operations like creating, reading, deleting, etc. js: fs-extra This module adds a few extra file system methods that aren't included in the native fs module. The following are suggested best practices to keep your code simple and safe when working with different filesystems. js's File System (fs) module, which provides an API for interacting with the file system. js that provides an API for interacting with the file system in a way that closely models the standard POSIX functions. 2, last published: 3 months ago. There are 5591 other projects in the npm registry using xlsx. js exposes many features of the filesystem. In-depth documentation, guides, and reference materials for building secure, high-performance JavaScript and TypeScript applications with Deno fs-extra contains methods that aren't included in the vanilla Node. js File System The Node. x Options View on single page View as JSON Table of contents About this documentation Contributing Stability index Stability overview JSON output System calls and man pages Usage and example Usage Example Assert Strict assertion mode Legacy A native module for effectively working with files built on top of Node's famous fs module. The fs (File System) module allows developers to read, write, modify, delete, and interact with files and date-fns provides the most comprehensive yet simple and consistent toolset for manipulating JavaScript dates in a browser & Node. Native filesystem access for react-native. Latest version: 2. js and installable via npm i async, it can also be used directly in the browser. An introduction to the npm package manager Introduction to npm npm is the standard package manager for Node. js documentation. js file system module, which provides an API for writing files to the macOS, Windows and Linux file systems. 0, last published: a year ago. watch -- Utilities for watching file trees in node. File System in Node. Latest version: 3. Writing files with Node. Start using xlsx in your project by running `npm i xlsx`. js file system module helps us store, access, and manage data on our operating system. There are 532 other projects in the npm registry using react-native-fs. Different filesystems behave differently and have more or less Oct 1, 2025 · Having trouble navigating Node. x 15. appendFile to append data to a file. x 4. The built-in Node. Returns the contents of the path. Check Fs-extra 11. write (). Start using fs-extra in your project by running `npm i fs-extra`. extname() method returns the extension of the path, from the last occurrence of the . readFile to read data from a file, fs. x 10. Start using adm-zip in your project by running `npm i adm-zip`. Documentation for the npm registry, website, and command-line interface Node. x 17. Some Documentation-only deprecations trigger a runtime warning when launched with --pending-deprecation flag (or its alternative, NODE_PENDING_DEPRECATION=1 environment variable), similarly to Runtime deprecations below. Start using fs-plus in your project by running `npm i fs-plus`. readFile () method is a fundamental tool for reading files asynchronously, allowing your application to remain responsive while accessing file data. Contribute to itinance/react-native-fs development by creating an account on GitHub. watch-based implementation is the default, which avoids polling and keeps CPU usage An Agent object for HTTPS similar to http. Jul 23, 2025 · Node. js allows reading, writing, updating, and deleting files using the fs module. 1, last published: 4 years ago. js’s core modules. Filesystem Behavior Before you can work with a filesystem, you need to know how it behaves. It allows you to perform operations such as reading, writing, updating, and deleting files and directories, which are essential for server-side applications and scripts. js will generally experience the following categories of errors: Standard JavaScript errors such as <EvalError>, <SyntaxError>, <RangeError>, <ReferenceError>, <TypeError>, and <URIError>. 0 package - Last release 11. Start using react-native-fs in your project by running `npm i react-native-fs`. We would like to show you a description here but the site won’t allow us. Start using axios in your project by running `npm i axios`. Start using fast-glob in your project by running `npm i fast-glob`. Although originally designed for use with Node. Example # An example of a web server written with Node. The full guide to using node fs with promises / async - grantmk/how-to-use-node-fs Promise based HTTP client for the browser and node. See https. You can explore these methods in the Node. readFileSync, though it seems it cannot be found. There are 759 other projects in the npm registry using memfs. This is one reason fs. readFileSync () method is used to read files from the filesystem in a synchronous manner. Extended `fs` drop-in replacement for Node. Learn synchronous and asynchronous methods with examples. js provides an API to interact with the file system on your computer. Our other tools and services take the Registry, and the work you do around it, to the next level. Start using vinyl-fs in your project by running `npm i vinyl-fs`. Normally, the first parameter to a Node. fork (): spawns a new Node. io Introduction to Node. js gives the functionality of file I/O by providing wrappers around the standard POSIX functions. There are 3774 other projects in the npm registry using adm-zip. js provides many other methods for file system operations, such as renaming files, deleting files, creating directories, and more. 1, last published: 7 years ago. 20. js is to use the fs. 17, last published: 10 years ago. Why? I got tired of including mkdirp, rimraf, and cp -r in most of my projects. 6, last published: a year ago. A file descriptor is a reference to an open file, a number (fd) returned by opening the file using the open() method offered by the fs module. filesystem helper functions, wrappers, and promisification for the npm cli - fs/README. fs-extra contains methods that aren't included in the vanilla Node. x 23. System errors triggered by underlying operating system constraints such as attempting to open a file that does not exist or attempting to send Vinyl adapter for the file system. There are 62722 other projects in the npm registry using fs-extra. All methods in fs are unmodified and attached to fs-extra. js | -e "script" | - ] [arguments] Please see the Command-line options document for more information. 16, last published: a year ago. It provides methods to read, write, update, and delete files and directories. While seemingly straightforward, the core operation – interacting with the filesystem – can quickly Reading files with Node. Use the disk manager to manipulate files located in disks. js File System API in a nice and friendly way! FS reading and writing. access () is recommended instead of fs. js CORS middleware. x 6. 3, last published: 10 months ago. Documentation-only deprecations that support that flag are explicitly labeled as such in the list of Deprecated APIs. Node. There are 185 other projects in the npm registry using fs-plus. A stream is an abstract interface for working with streaming data in Node. Start using jsonfile in your project by running `npm i jsonfile`. Feb 9, 2025 · Introduction When working with Node. js Before you're able to interact with a file that sits in your filesystem, you must get a file descriptor. There are 12849 other projects in the npm registry using fs. Contribute to supercharge/fs development by creating an account on GitHub. watch. 10. Do not include the $ and We would like to show you a description here but the site won’t allow us. exec () except that it spawns the command directly without first spawning a shell by default. Oct 7, 2024 · The fs module in Node. Latest version: 6. There are 136 other projects in the npm registry using fs-monkey. 0. This number (fd) uniquely identifies an open file in operating system: Install with npm npm i glob Note the npm package name is not node-glob that's a different thing that was abandoned years ago. x 20. 1, last published: 6 years ago. There are 355 other projects in the npm registry using fs-monkey. ". 2. child_process. Contribute to nodejs/node development by creating an account on GitHub. Start using balena-image-fs in your project by running `npm i balena-image-fs`. Standard DOMException s. Why Type FS Write automation scripts to manage files in many storage fs-extra contains methods that aren't included in the vanilla Node. The process object provides information about, and control over, the current Node. Working with file descriptors in Node. x 5. This behavior can be useful when you need to ensure that the file's content is available immediately, such as during the initial setup of How to Work with Different Filesystems Node. There are 160595 other projects in the npm registry using axios. Commonly used features of the fs module include fs. js, the fs. A build command that bundles your code Using a Globally Installed Package Grant read access to the global node_modules directory by running: npx --node-options="--permission --allow-fs-read=$ (npm prefix -g)" package-name copy Using the npx Cache If you are installing the package temporarily or relying on the npx cache, grant read access to the npm cache directory: npx --node-options="--permission --allow-fs-read=$ (npm config get Note that in order to Browserify a project using PDFKit, you need to install the brfs module with npm, which is used to load built-in font data into the package. watchTree (root, [options,] callback) The first argument is the directory root you want to watch. x 11. This forks aims to keep the library on par with the latest React Native standards, and to further develop the library according to the best industry practices. js File System module (fs) provides a comprehensive set of methods for working with the file system on your computer. md at main · npm/fs path <string> Returns: <string> The path. Project Status Please refer to the roadmap to get the current progress of feature requests and bug fixes. Chokidar relies on the Node. 6, last published: 8 years ago. js API. x LTS 21. There are 12 other projects in the npm registry using balena-image-fs. Create and modify PDF files with JavaScript. 8. There are 5635 other projects in the npm registry using archiver. 0, last published: 13 days ago. x LTS 19. x 0. There are 5 other projects in the npm registry using fs-js. filesystem helper functions, wrappers, and promisification for the npm cli - npm/fs fs-extra contains methods that aren't included in the vanilla Node. You don't Nov 14, 2023 · Learn how to use the fs-extra library in Node. This project is a fork of the upstream react-native-fs library, which has been abandoned by its owners and maintainers. Aug 5, 2025 · What is NPM FS? There is no specific package named "npm fs. Latest version: 4. node's fs with more helpers. 2, last published: a month ago. I made sure to declare it, added it within my constructor: export default class Login extends React. It allows you to perform file I/O operations in both synchronous and asynchronous ways. Streaming CSV parser that aims for maximum speed as well as compatibility with the csv-spectrum test suite. There are 1209 other projects in the npm registry using csv-parser. readFile() method, passing it the file path, encoding and a callback function that will be called with the file data (and the error): Node. The fs core module is available in every Nov 2, 2024 · The fs (file system) module in Node. js process and invokes a specified module with an IPC Javascript implementation of zip for nodejs with support for electron original-fs. js callback is an err parameter, optionally followed by other parameters. js, is the perfect entry point for getting comfortable Node. A Feb 27, 2024 · To import and use the `fs` module in TypeScript, make sure to install the type definitions for `node` by running `npm i -D @types/node`. x 24. Nov 28, 2023 · Learn the basics of the Node. js Writing a file The easiest way to write to files in Node. Latest version: 7. Start using memfs in your project by running `npm i memfs`. js fs for Production Systems Introduction Imagine a microservice responsible for processing user-uploaded images. x 8. exists (). The FS module includes all the functions necessary to read, write, and delete files on the local computer. The fs/promises API provides asynchronous file system methods that return promises. There are 1371 other projects in the npm registry using vinyl-fs. Agent. Async is a utility module which provides straight-forward, powerful functions for working with asynchronous JavaScript. This means that when you use this method, your program will pause and wait until the file has been completely read before moving on to the next task. stdin) one line at a time. Jul 12, 2025 · The fs (File System) module in Node. readFile (): reads files asynchronously fs. Such as recursive mkdir, copy, and remove. js process. Latest version: 1. The most effective and helpful methods for handling the file system include fs. Start using fs-monkey in your project by running `npm i fs-monkey`. Image filesystem manipulation utilities. Installation npm install --save fs-extra Usage fs-extra is a drop in replacement for native fs. js is a built-in module that allows developers to work with the file system. 0, last published: 9 months ago. js. 1, last published: 2 years ago. writeFile (), fs. Allows user to create or extract zip files both in memory or to/from disk. install npm install file-system --save API . x 14. readFile() method allows us to read the content of a file Utilities that helps manipulating a file system through stream. filesystem utilities for the npm cli. watch and fs. request() for more information. x 16. In September 2022 over 2. js JavaScript runtime 🐢🚀 . x Options View on single page View as JSON Edit on GitHub About this documentation Usage and example Assertion testing Asynchronous context tracking Async hooks Buffer C++ addons C/C++ addons with Node-API C++ embedder API Child processes Mar 27, 2017 · I'm just trying to read a file using fs. Similar to readFile, when the path is a directory, the behavior of fs. js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts. 1. 3. x 9. The fs. (period) character to end of string in The fs/promises API provides asynchronous file system methods that return promises. SheetJS Spreadsheet data parser and writer. 1 readFile () The fs. js modules without modification. 0, last published: 2 months ago. Errors # Applications running in Node. Read file To read the content of a file using NodeJS, we can use the readFile() and readFileSync() methods. The node:readline module provides an interface for reading data from a Readable stream (such as process. There is 1 other project in the npm registry using fs-stream. watchFile to get notified of changes, and fs. watchFile for watching, it normalizes the events it receives, often checking for truth by getting file stats and/or dir contents. Latest version: 0. This method is part of Node. 0, last published: 6 months ago. readthedocs. Start using fs-util in your project by running `npm i fs-util`. Usage and example # Usage # node [options] [V8 options] [script. There are 13 other projects in the npm registry using fs-util. Jul 12, 2025 · In Node. . Start using pdf-lib in your project by running `npm i pdf-lib`. It consists of two major parts: A dev server that provides rich feature enhancements over native ES modules, for example extremely fast Hot Module Replacement (HMR). With Type FS you can define multiple disk locations across common protocols such as file:// or s3://. May 2, 2019 · Introduction to vast Node. 5. x 7. Start using csv-parser in your project by running `npm i csv-parser`. Dec 11, 2024 · The fs module in Node. js is a powerful tool for working with the file system, allowing Tagged with node, javascript, webdev, react. 17. There are 8192 other projects in the npm registry using fast-glob. This lets you run tests against a set of mock files and directories instead of lugging around a bunch of test fixtures. There are 941 other projects in the npm registry using pdf-lib. It's a very fast and efficient glob library for Node. execFile (): similar to child_process. Latest version: 11. 0 Other versions 25. 0 with MIT licence at our NPM packages aggregator and search engine. If the encoding option is specified then this function returns a string. But not all filesystems are alike. x 18. 0, last published: 7 months ago. An ESM/MJS version is included in the main async package that should automatically be used with compatible bundlers such as Webpack and Rollup. readFile (), and fs. Easily read/write JSON files. exec (): spawns a shell and runs a command within that shell, passing the stdout and stderr to a callback function when complete. fs-extra contains hundreds of tests. watchFile but can also be used to provide two additional Some of the methods include: fs. 12. js provides an API for interacting with the file system. js provides an inbuilt module called FS (File System). Otherwise it returns a buffer. Aug 24, 2024 · The fs (File System) module in Node. writeFile (): writes data to files asynchronously fs. 39. The mock-fs module allows Node's built-in fs module to be backed temporarily by an in-memory, mock file system. js Install npm install watch Purpose The intention of this module is provide tools that make managing the watching of file & directory trees easier. 4eu cyc2 ynozs i82b3 kx0b utba nfjri haj 8harj xzcm