Frontend
The client-side code that users see and interact with directly in their browser.
Definition
Frontend development creates the visual and interactive elements users experience directly. It encompasses HTML structure, CSS styling, JavaScript functionality, and frameworks like React, Vue, and Angular that enable complex interfaces.
Frontend developers translate designs into functional code that works across browsers and devices.
Why It Matters
Frontend quality directly impacts user experience and perception of a brand. Slow, buggy, or inaccessible frontends drive users away regardless of backend capabilities.
Modern frontend development is increasingly complex, with performance, accessibility, and cross-platform compatibility demands.
Examples in Practice
A frontend developer implements a design mockup using React components and CSS modules.
Performance optimization focuses on frontend bundle size and rendering efficiency.
Frontend accessibility testing ensures screen readers can navigate the interface effectively.