Meaning
The user-facing client-side interface of an application that users directly interact with in browsers or mobile devices.
Three examples from work
Feature sync
DesignerDoes the frontend render correctly on smaller mobile viewports?
Frontend DevYes, we tested it at 375px and the responsive drawer works smoothly.
Performance review
PMOur Lighthouse performance score on the frontend dropped below eighty.
Frontend DevWe can fix that by lazy-loading images and deferring third-party scripts.
State management
DevThe frontend maintains optimistic UI updates for instant feedback.
QAWhat happens if the backend call fails?
Spelled as 'frontend' or 'front-end'. Refers to HTML, CSS, JavaScript, and client-side application frameworks.