Node.js® is a JavaScript-based environment which you can use to create web-servers and networked applications. 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.
NPM is a “package manager” that makes installing Node “packages” fast and easy. A package is just a code library that extends Node by adding useful features. For example, the “request” package simplifies the process of making HTTP requests so you can easily get web resources from other sites.
You should have some familiarity with an application that lets you issue command line instructions. For example, the Windows Command Prompt, PowerShell, Cygwin, or the Git shell (which you get when you install Github for Windows).
Installation Overview
Installing Node.js® and NPM is pretty straightforward using the installer package available from the Node.js web site.
Run the installer (the .msi file you downloaded in the previous step.)
Follow the prompts in the installer (Accept the license agreement, click the NEXT button a bunch of times and accept the default installation settings).
Restart your computer. You won’t be able to run Node.js until you restart your computer.
Test it!
Make sure you have Node and NPM installed by running simple commands to see what version of each is installed:
Test Node. To see if Node is installed, open the Windows Command Prompt, Powershell or a similar command line tool, and type node -v. This should print the version number so you’ll see something like this v0.10.35.
Test NPM. To see if NPM is installed, type npm -v in Terminal. This should print the version number so you’ll see something like this 1.4.28
Create a test file and run it. 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!');. To run the code simply open your command line program, navigate to the folder where you save the file and type node hello.js. This will start Node.js and run the code in the hello.js file. You should see the output Node is installed!.
How to Update Node and NPM
New versions of Node and NPM come out frequently. To install the updates, just download the installer from the Nodejs.org site and run it again. The new version of Node.js and NPM will replace the older versions.
How to Uninstall Node and NPM
You uninstall Node.js and NPM the same as you would most all Windows software:
NPM is included with Node.js installation. After you install Node. js, verify NPM installation by writing the following command in terminal or command prompt.
Make sure you have Node and NPM installed by running simple commands to see what version of each is installed: Test Node. To see if Node is installed, open the Windows Command Prompt, Powershell or a similar command line tool, and type node -v . This should print the version number so you'll see something like this v0.
To publish and install packages to and from the public npm registry or a private npm registry, you must install Node.js and the npm command line interface using either a Node version manager or a Node installer. We strongly recommend using a Node version manager like nvm to install Node.js and npm.
Yes, it is possible. Npm is there to help you managing and installing third party packages. If you don't rely with external packages from npmjs, you don't need it. However, it is important to note that npm is now one of industry standards to build software in the JavaScript ecosystem.
If NPM is not installed or is outdated, you can install it separately or update it by running the command npm install -g npm in the terminal. This will update NPM to the latest version. To verify the NPM installation, type npm -v in the terminal. It should display the latest version of NPM.
npm stands for Node Package Manager. It's a library and registry for JavaScript software packages. npm also has command-line tools to help you install the different packages and manage their dependencies. npm is free and relied on by over 11 million developers worldwide.
Windows normally recommends that the programs be installed in the Program Files folder, in a folder of their own (in our case, we are installing Node. js, so the nodejs folder is our go-to place).
Step 1: Download Installer by Visiting Node. js official website. Step 2: Run Installer by Opening the downloaded installer. Follow the on-screen instructions to complete the installation.
Introduction: My name is Kelle Weber, I am a magnificent, enchanting, fair, joyous, light, determined, joyous person who loves writing and wants to share my knowledge and understanding with you.
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