$ sudo npm install immutable-class
$ sudo npm install -g immutable-class

If want to update the immutable-class package execute the command as below,

$ sudo npm update immutable-class

Update package globally,

$ npm install -g immutable-class

Git clone:

$ sudo  git clone https://github.com/rektide/immutable-class.git

$ sudo  npm install -g ./immutable-class

immutable-class@0.6.41 /usr/lib/node_modules/immutable-class

How to remove immutable-class package :

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

$ sudo npm uninstall immutable-class

Basic Information of immutable-class NPM Package: