Qiánduān fùzé yònghù kàndào de yèmiàn, hòuduān chǔlǐ shùjù luójí.
The front end handles what users see; the back end processes data logic.
Tips
usage
In computing, 前端 (front-end) refers to the client-side layer — HTML, CSS, JavaScript, and the user interface. Its counterpart is 后端 (back-end). Outside tech, 前端 can mean the leading part or front section of any object.