Are Form 2220 Filers 2023-2024

Hello guys, welcome to the next video on Node.js for beginners. In this video, I'm going to show you how we can use the filesystem module in Node.js, which is a built-in module. Node implements file I/O using a simple wrapper around the standard POSIX functions. This is done using the Node filesystem module or simply FS module in Node.js. To add the FS module, you just need to write var FS = require('fs'). This is how you can add the FS module. This FS module can be used for various input/output functions related to the file system. In this video, we are particularly going to see how we can use this FS module to read and write to a file synchronously and asynchronously. First, let's use this FS module to read from a file synchronously. But for that, we need a file test.txt that we can read. So, I'm going to create a text file named test.txt and write some content in it. To read this file synchronously, we can use the following code: var readString = FS.readFileSync('test.txt', 'utf-8'); console.log(readString); Now, let's try running the code and see the output in the console. The content of the file should be displayed. Next, if we want to write the content of the file to another file or create a new file with the content we have read, we can use the following code: FS.writeFileSync('test2.txt', readString); Running the code will create a new file named test2.txt with the same content as test.txt. Apart from synchronous functions, the FS module also provides asynchronous methods to read and write to a file. For this, we can use the readFile method without 'Sync'. Here's an example of how to read the content of the test.txt file asynchronously: FS.readFile('test.txt', function(error, data) { if (error) { return console.error(error); } console.log('The file is read!'); console.log(data); }); In this callback...