libjs-underscore software package provides JavaScripts functional programming helper library, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libjs-underscore
libjs-underscore is installed in your system.
Make ensure the libjs-underscore package were installed using the commands given below,
$ sudo dpkg-query -l | grep libjs-underscore *
You will get with libjs-underscore package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Web Software |
| Package | libjs-underscore |
| Version | 1.7.0~dfsg-1 |
| Description | JavaScripts functional programming helper library |
| Sub Section | Web |