$ sudo npm install flatmap
$ sudo npm install -g flatmap

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

$ sudo npm update flatmap

Update package globally,

$ npm install -g flatmap

Git clone:

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

$ sudo  npm install -g ./flatmap

flatmap@0.0.3 /usr/lib/node_modules/flatmap

How to remove flatmap package :

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

$ sudo npm uninstall flatmap

Basic Information of flatmap NPM Package: