Fundamentals

Prepare for your frontend developer interview with essential concepts in HTML, CSS, React, and JavaScript, as demonstrated in a mock interview.

Event loop, event delegation, bubbling and capture, target vs currentTarget, and how to work with the DOM and events in JavaScript.

Using fetch, async/await, error handling, loading states, and patterns for data loading in the browser.

Master Flexbox, CSS Grid, and modern layout features like container queries and :has() for responsive, maintainable interfaces.

Core JavaScript concepts: variables, functions, control flow, objects, arrays, scope, error handling, and modern ES6+ syntax every frontend developer needs.

Deep dive into the event loop, async patterns, prototypes, closures, functional programming, and JavaScript gotchas every senior developer should know.

Document structure, semantic elements, forms, media, links, accessibility basics, and SEO-friendly HTML practices for building solid web pages.

WCAG guidelines, ARIA attributes, accessible forms, focus management, screen reader testing, color contrast, anti-patterns, and automated a11y tools.

Master the core building blocks of CSS: selectors, the box model, specificity, units, colors, typography, positioning, and display—the foundation of web styling.

Learn why TypeScript, basic types, interfaces vs types, unions and intersections, generics, type narrowing, utility types, and TypeScript with React.