$ sudo apt-get update
$ sudo apt-get install libjs-getobject 

libjs-getobject is installed in your system.

Make ensure the libjs-getobject package were installed using the commands given below,

$ sudo dpkg-query -l | grep libjs-getobject *

You will get with libjs-getobject package name, version, architecture and description in a table

libjs-getobject package basic information: