Writing files with Node.js Writing a file The easiest way to write to files in Node.js is to use the fs.writeFile() API.

Node.js is an open-source and cross-platform JavaScript runtime environment. It is a popular tool for almost any kind of project! Node.js runs the V8 JavaScript engine, the core of Google …

The simplest way to read a file in Node.js is to use the fs.readFile() method, passing it the file path, encoding and a callback function that will be called with the file data (and the error):

Node.js provides a built-in task runner that allows you to execute specific commands defined in your package.json file. This can be particularly useful for automating repetitive tasks such as …

Working with folders in Node.js The Node.js fs core module provides many handy methods you can use to work with folders. Check if a folder exists Use fs.access() (and its promise-based …

Now, you can use the --env-file flag to specify an environment file when running your Node.js application. Here's an example .env file and how to access its variables using process.env.

All file system operations have synchronous, callback, and promise-based forms, and are accessible using both CommonJS syntax and ES6 Modules (ESM).

CommonJS modules are the original way to package JavaScript code for Node.js. Node.js also supports the ECMAScript modules standard used by browsers and other JavaScript runtimes. …

Node.js supports the creation of single executable applications by allowing the injection of a blob prepared by Node.js, which can contain a bundled script, into the node binary.

Every file in the system has a path. On Linux and macOS, a path might look like: /users/joe/file.txt while Windows computers are different, and have a structure such as: C:\users\joe\file.txt