back end or front end code example
Example 1: front end vs back end
The term “front-end” refers to the user interface, while “back-end” means the
server, application and database that work behind the scenes to deliver
information to the user.
Example 2: what's backend
In the computer world, the "backend" refers to any part of a website or software program that users do not see.
Example 3: is javascript front end or backend
JavaScript is a front-end language in a browser, but using node.js it can
also be used as a backend language.