#Best editor node js for mac how to
To install Node.js on macOS or Ubuntu 18.04, follow the steps in How To Install Node.js and Create a Local Development Environment on macOS or the Installing Using a PPA section of How To Install Node.js on Ubuntu 18.04. This tutorial uses Node.js version 10.22.0. You must have Node.js installed on your computer to access the fs module and follow the tutorial.
The fs module supports interacting with files synchronously, asynchronously, or via streams this tutorial will focus on how to use the asynchronous, Promise-based API, the most commonly used method for Node.js developers. In this article, you will use the fs module to read a file created via the command line, create and write to a new file, delete the file that you created, and move the first file into a different folder. This unique aspect of Node.js makes JavaScript a useful language for back-end and CLI tool programming. The name is short for “file system,” and the module contains all the functions you need to read, write, and delete files on the local machine. With Node.js, you can programmatically manipulate files with the built-in fs module.
These programs would need to communicate with the filesystem of the operating system on which they are running. In the same way, a back-end program or command line interface (CLI) tool might need to write downloaded data to a file in order to save it, or a data-intensive application may need to export to JSON, CSV, or Excel formats. In daily computer use, a user would likely read and write data to files in various directories in order to accomplish tasks like saving a downloaded file or accessing data to be used in another application. Working with files is as common for development purposes as it is for non-development purposes. The author selected the COVID-19 Relief Fund to receive a donation as part of the Write for DOnations program.
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