$ sudo npm install is-observable
$ sudo npm install -g is-observable

If want to update the is-observable package execute the command as below,

$ sudo npm update is-observable

Update package globally,

$ npm install -g is-observable

Git clone:

$ sudo  git clone https://github.com/rektide/is-observable.git

$ sudo  npm install -g ./is-observable

is-observable@1.0.0 /usr/lib/node_modules/is-observable

How to remove is-observable package :

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

$ sudo npm uninstall is-observable

Basic Information of is-observable NPM Package: