$ sudo npm install stable
$ sudo npm install -g stable

If want to update the stable package execute the command as below,

$ sudo npm update stable

Update package globally,

$ npm install -g stable

Git clone:

$ sudo  git clone https://github.com/rektide/stable.git

$ sudo  npm install -g ./stable

stable@0.1.6 /usr/lib/node_modules/stable

How to remove stable package :

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

$ sudo npm uninstall stable

Basic Information of stable NPM Package: