$ sudo npm install svg.js
$ sudo npm install -g svg.js

If want to update the svg.js package execute the command as below,

$ sudo npm update svg.js

Update package globally,

$ npm install -g svg.js

Git clone:

$ sudo  git clone https://github.com/rektide/svg.js.git

$ sudo  npm install -g ./svg.js

svg.js@2.6.3 /usr/lib/node_modules/svg.js

How to remove svg.js package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall svg.js

Basic Information of svg.js NPM Package: