$ sudo apt-get update
$ sudo apt-get install libjs-of-ocaml 

libjs-of-ocaml is installed in your system.

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

$ sudo dpkg-query -l | grep libjs-of-ocaml *

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

libjs-of-ocaml package basic information: