You uninstall Node.js and NPM the same as you would most all Windows software: The new version of Node.js and NPM will replace the older versions. To install the updates, just download the installer from the site and run it again. New versions of Node and NPM come out frequently. You should see the output Node is installed!. This will start Node.js and run the code in the hello.js file. To run the code simply open your command line program, navigate to the folder where you save the file and type node hello.js. A simple way to test that node.js works is to create a simple JavaScript file: name it hello.js, and just add the code console.log('Node is installed!'). This should print the version number so you’ll see something like this 1.4.28 To see if NPM is installed, type npm -v in Terminal. This should print the version number so you’ll see something like this v0.10.35. To see if Node is installed, open the Windows Command Prompt, Powershell or a similar command line tool, and type node -v. Make sure you have Node and NPM installed by running simple commands to see what version of each is installed: You won’t be able to run Node.js until you restart your computer. Follow the prompts in the installer (Accept the license agreement, click the NEXT button a bunch of times and accept the default installation settings).msi file you downloaded in the previous step.) Installing Node.js® and NPM is pretty straightforward using the installer package available from the Node.js web site.

For example, the Windows Command Prompt, PowerShell, Cygwin, or the Git shell (which you get when you install Github for Windows). You should have some familiarity with an application that lets you issue command line instructions.NPM is installed when you install Node.js® Prerequisites For example, the “request” package simplifies the process of making HTTP requests so you can easily get web resources from other sites. A package is just a code library that extends Node by adding useful features. NPM is a “package manager” that makes installing Node “packages” fast and easy. You can also use it to perform helpful tasks on your computer such as concatenating and minifying JavaScript files and compiling Sass files into CSS. Node.js® is a JavaScript-based environment which you can use to create web-servers and networked applications. Installing Node.js® and NPM on Windows What’s Node.js® and NPM?

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