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

node-node-stringprep is installed in your system.

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

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

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

node-node-stringprep package basic information: