How To Npm Install Globally

NPM - Node Bundle Manager

Node Package Manager (NPM) is a command line tool that installs, updates or uninstalls Node.js packages in your application. It is also an online repository for open-source Node.js packages. The node community around the world creates useful modules and publishes them as packages in this repository.

It has now go a popular package manager for other open-source JavaScript frameworks similar AngularJS, jQuery, Gulp, Bower etc.

Official website: https://www.npmjs.com

NPM is included with Node.js installation. After you install Node.js, verify NPM installation past writing the following control in terminal or command prompt.

C:\> npm -v 2.11.3

If yous have an older version of NPM then y'all can update information technology to the latest version using the following command.

C:\> npm install npm -one thousand

To access NPM assistance, write npm help in the command prompt or terminal window.

C:\> npm assistance

NPM performs the operation in two modes: global and local. In the global style, NPM performs operations which touch all the Node.js applications on the reckoner whereas in the local manner, NPM performs operations for the particular local directory which affects an application in that directory just.

Install Parcel Locally

Apply the post-obit control to install whatever third political party module in your local Node.js project binder.

C:\>npm install <package name>

For example, the post-obit command will install ExpressJS into MyNodeProj binder.

C:\MyNodeProj> npm install express

All the modules installed using NPM are installed under node_modules folder. The above command will create ExpressJS folder under node_modules folder in the root folder of your project and install Express.js there.

Add Dependency into package.json

Use --relieve at the end of the install command to add dependency entry into packet.json of your awarding.

For example, the following command will install ExpressJS in your application and likewise adds dependency entry into the package.json.

C:\MyNodeProj> npm install express --save

The bundle.json of NodejsConsoleApp project volition look something like below.

            {              "proper name":              "NodejsConsoleApp",              "version":              "0.0.0",              "description":              "NodejsConsoleApp",              "primary":              "app.js",              "author": {              "proper noun":              "Dev",              "email":              ""              },              "dependencies": {              "express":              "^4.thirteen.iii"              } }

Install Package Globally

NPM tin can also install packages globally then that all the node.js application on that figurer can import and use the installed packages. NPM installs global packages into /<User>/local/lib/node_modules folder.

Use -k in the install command to install package globally. For example, the post-obit command will install ExpressJS globally.

C:\MyNodeProj> npm install -g express

Update Packet

To update the package installed locally in your Node.js project, navigate the command prompt or terminal window path to the projection folder and write the post-obit update command.

C:\MyNodeProj> npm update <package proper name>

The following command will update the existing ExpressJS module to the latest version.

C:\MyNodeProj> npm update express