You can read a file using Node.js with the FS library. For this tutorial, we will use the FS library to read a JSON file and parse its contents. Configuration files are widely used in applications as a simple, quick way to store and retrieve settings and other things that need to pers...
Read Data From FilesThe simplest way to read a file in Node.js is to use the fs.readFile() method by passing the file path, encoding, and a callback function.It asynchronously reads the entire contents of the file and calls the callback function with the file data:...
Oftentimes, the File Reader API permits a web application to save a file reference even when the user is offline. In this section, we will focus on the event handlerFileReader.readAsArrayBuffer()while it returns an ArrayBuffer version of the local file. Conversely, theFileReader.readAsText()me...
Use Node.jsreadlineModule to Read a Local File in JavaScript We should make sure we have Node installed to use this method. We can check that by typingnode -vin the terminal or command prompt. We can now use thereadlinemodule to read the file’s content easily. We create a file,app....
createReadStream('file.txt'), output: process.stdout, terminal: false }) rl.on('line', line => { console.log(line) }) Line-Reader Moduleline-reader is an open-source module for reading a file line by line in Node.js. You can add it to your project by running the following ...
So, in this tutorial we are going to learnfs module in Node.js. File system (fs) module fs module in Node.js used to work on the files of our systems and manipulate their data. By using the property.readFile()of file system we can easily fetch any file from our local system and ...
Follow the given steps to read CSV files using the node.js native module: Import the modules:We first need to import thefsandreadlinemodules in our javascript code. Specify the path:Create a variablepathand specify the path of the CSV file that we will use to read data from. ...
First, we need to import the file system library from Node.js, which we'll use to read our file. import{promisesasfs}from'fs'; In Next.js, create a newServer Component, which is the default in theApp Router. This component is rendered entirely on the server, which allows for securely...
File.bufferedReader() : To read contents of a file into BufferedReader File.forEachLine() : To read a file line by line in Kotlin File.inputStream() : To read contents of file to InputStream File.readBytes() : To read contents of file to ByteArray File.readLines() : To read lines...
fs.readFile("./data.txt","utf8",function(err,data){if(err){console.error(err);return;}console.log(data);}); You’ve just learned how to read the content of a file using NodeJS. BothreadFile()andreadFileSync()method buffers the entire file content in the memory before displaying th...