103. Installing Node on macOS

Week 3: Day 2 Section 12: Intro to Node, Mongo, & REST APIs Tutorial 103: Installing Node on macOS In this video, we are going to learn about node js, how to install it and use it. What is Nodejs? Node. js is a platform built on Chrome's JavaScript runtime for easily building fast and scalable network applications. Node. js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices. In simple language, it's a useful tool for helping us interpret our javaScript code. Before node javascript was only interpreted by browser but with node, javascript can run pretty much anywhere. It's extremely powerful because it's blazingly fast, scalable, has a big, thriving community of developers behind it, a lot of prewritten code in its npm (basically an App Store for code). Node.js runs single-threaded, non-blocking, asynchronous programming, which is very memory efficient. What Can Node.js Do? Node.js can generate the dynamic page content Node.js can create, open, read, write, delete, and close files on the server Node.js can collect form data Node.js can add, delete, modify data in your database What is a Node.js File? Node.js files contain tasks that will be executed on certain events A typical event is someone trying to access a port on the server Node.js files must be initiated on the server before having any effect Node.js files have extension ".js" The official Node.js website has installation instructions for Node.js: https://nodejs.org After installing the node on your device you are ready to run javascript file anywhere. To work with javascript open your terminal and type node, now the terminal is capable of interpreting javascript. Node. js is not a framework, it's only a runtime environment to run JavaScript on the server-side. Node. js, as a package, contains an interpreter and a compiler. Full Stack Web Development in Just 3 weeks Published by WB Web, Under free promotions, Watch All the videos for free for a limited time. You can buy the course from Udemy for lifetime access. Udemy Course Link: https://www.udemy.com/ultimate-web/ Content Credit: Mark Price https://www.devslopes.com/ Hosted By WB Web Development Solutions