$ sudo apt-get update
$ sudo apt-get install node-xmlhttprequest 

node-xmlhttprequest is installed in your system.

Make ensure the node-xmlhttprequest package were installed using the commands given below,

$ sudo dpkg-query -l | grep node-xmlhttprequest *

You will get with node-xmlhttprequest package name, version, architecture and description in a table

node-xmlhttprequest package basic information: