![database code for us newstream database code for us newstream](https://atlanticcapitalbank.com/wp-content/uploads/2018/11/6-1-e1541785609893-768x1024.jpg)
![database code for us newstream database code for us newstream](https://blog.opentable.com/wp-content/uploads/sites/108/2017/06/44737-food.albacore_tuna-768x512.jpg)
fs.createWriteStream() creates a writable stream to a file.fs.createReadStream() creates a readable stream to a file.process.stderr returns a stream connected to stderr.process.stdout returns a stream connected to stdout.process.stdin returns a stream connected to stdin.Using the Node.js fs module, you can read a file, and serve it over HTTP when a new connection is established to your HTTP server:ĭue to their advantages, many Node.js core modules provide native stream handling capabilities, most notably: Time efficiency: it takes way less time to start processing data, since you can start processing as soon as you have it, rather than waiting till the whole data payload is availableĪ typical example is reading files from a disk.Memory efficiency: you don't need to load large amounts of data in memory before you are able to process it.Streams basically provide two major advantages over using other data handling methods: The Node.js stream module provides the foundation upon which all streaming APIs are built.Īll streams are instances of EventEmitter Why streams Using streams you read it piece by piece, processing its content without keeping it all in memory. They were introduced in the Unix operating system decades ago, and programs can interact with each other passing streams through the pipe operator ( |).įor example, in the traditional way, when you tell the program to read a file, the file is read into memory, from start to finish, and then you process it. Streams are not a concept unique to Node.js. They are a way to handle reading/writing files, network communications, or any kind of end-to-end information exchange in an efficient way. Streams are one of the fundamental concepts that power Node.js applications. Signaling a writable stream that you ended writing.
#Database code for us newstream how to
Offline_boltGetting Started The V8 JavaScript Engine Run Node.js scripts from the command line How to exit from a Node.js program How to read environment variables from Node.js How to use the Node.js REPL Node.js, accept arguments from the command line Output to the command line using Node.js Accept input from the command line in Node.js Expose functionality from a Node.js file using exports An introduction to the npm package manager Where does npm install the packages? How to use or execute a package installed using npm The package.json guide The package-lock.json file Find the installed version of an npm package Install an older version of an npm package Update all the Node.js dependencies to their latest version Semantic Versioning using npm Uninstalling npm packages npm global or local packages npm dependencies and devDependencies The npx Node.js Package Runner The Node.js Event Loop Understanding process.nextTick() Understanding setImmediate() Discover JavaScript Timers JavaScript Asynchronous Programming and Callbacks Understanding JavaScript Promises Modern Asynchronous JavaScript with Async and Await The Node.js Event emitter Build an HTTP Server Making HTTP requests with Node.js Get HTTP request body data using Node.js Working with file descriptors in Node.js Node.js file stats Node.js File Paths Reading files with Node.js Writing files with Node.js Working with folders in Node.js The Node.js fs module The Node.js path module The Node.js os module The Node.js events module The Node.js http module Node.js Buffers Node.js Streams Node.js, the difference between development and production Error handling in Node.js How to log an object in Node.js Node.js with TypeScript Node.js with WebAssembly Node.js Streams TABLE OF CONTENTS Offline_boltQuick Start Introduction to Node.js A brief history of Node.js How to install Node.js How much JavaScript do you need to know to use Node.js? Differences between Node.js and the Browser