Semantic markup, accessibility, forms, and document structure

HTML Essentials

Selectors, specificity, layout systems, and the cascade

CSS Mastery

Scope, closures, prototypes, and the tricky parts of JS

Event loop, promises, async/await, and execution order

DOM manipulation, events, storage, and web platform APIs

Hooks, state management, rendering, and component patterns

HTML, CSS, and JavaScript basics combined

JavaScript, DOM, and React - mid-level challenges

Performance, security, and advanced patterns

Mixed difficulty - simulates real screening assessments

Next.js routing, rendering, security, and Node.js – real Uber interview questions

Mixed HTML, CSS, JavaScript, TypeScript, and React questions from a HackerRank assessment