How to Create an Empty File in Node.js
In this tutorial, we will learn how to create an empty file in a filesystem folder using Node.js. The best method to achieve this is by using the fs.openSync() function provided by the built-in fs module.
To begin, we need to require the fs module and specify the path and name of the file we want to create. For example, let’s assume we want to create a file called “initialized” inside the “.data” folder:
1 | const fs = require('fs'); |
Next, we will call the fs.openSync() function and pass in the file path as the first argument and the 'w' flag as the second argument. The 'w' flag ensures that the file is created if it doesn’t already exist. If the file exists, it will be overwritten with a new file, replacing its content.
1 | const fd = fs.openSync(filePath, 'w'); |
If you want to avoid overwriting the file, you can use the 'a' flag instead. This flag will still create the file if it doesn’t exist, but it won’t overwrite the content of an existing file.
If you don’t need to use the file descriptor (fd), you can wrap the fs.openSync() function call in a fs.closeSync() function call to immediately close the file:
1 | fs.closeSync(fs.openSync(filePath, 'w')); |
And that’s it! You now know how to create an empty file in Node.js using the fs module.
Tags: Node.js, file system, create empty file, fs module