![]() ![]() I’m the maintainer of the package providing convenient file system utilities. * Returns the content of the given file `path` as a string.Ĭonst text = await content('./existing-file.txt') Here’s a content method reading a file from the given file path and returning the content of this file: const = require('fs/promises') You can return the file content as a string using the string value 'utf8' as the encoding option. #Nodejs read file how to#This readFile method accepts two arguments: the file path and options how to return the contents. The fs.close() method is used to close the comes with the fs module. If you would like to explore more new and interesting stuff about modern Node.js, take a look at the following articles: Node.js: Using dirname and filename with ES Modules Node.js: Getting User Input from Console (2 approaches) Node.js: Generate Images from Text Using Canvas Node. The contents of the buffer are printed out as output. The fs.read() method reads the file using the file descriptor and stores in the buffer. Examples for reading files: We can read files a non-blocking asynchronously by fs.writeFile or in synchronous way with fs.writeFileSync. A file descriptor is a number or index that is stored in the file descriptor table by the kernel and is used to uniquely identify an open file in the computer’s operating system. You can readfiles from your nodejs application using fs.writeFile and fs.writeFileSync(for synchronous form) methods. Let’s write a file with the help of NodeJS and see if there any changes occurred or not in the below: const fs require ('fs') const txtWrite This is a write file and it will save this text into text folder\ fs.writeFileSync ('./text/writefile.txt', txtWrite) console.log ('File has been written') Here, we take a variable and write some. (err, bytesRead, buffer).Įxplanation: The fs.open() method opens the file and returns a file descriptor. callback: The callback function accepts the three arguments ie.If position is null, data is read from the current file position. 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. position: An integer that specifies where to begin reading from in the file.length: An integer that specifies the number of bytes to read.offset: Offset in the buffer indicating where to start writing at. ![]() buffer: Stores the data fetched from the file.fd: File descriptor returned by fs.open() method.Syntax fs.read(fd, buffer, offset, length, position, callback) #Nodejs read file update#
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