All Topics

Select a topic to open its deck. Every question is written in plain language — no fluff, no textbook phrasing.

HTML

Semantic structure, forms, accessibility, and the markup fundamentals every interview starts with.

Layouts, positioning, flexbox, grid, specificity, and the styling concepts that trip people up under pressure.

Closures, hoisting, event loop, async patterns, and the core language concepts behind every framework.

Hooks, component lifecycle, rendering behavior, and the patterns that separate 'using React' from 'understanding React.'

Slices, thunks, store setup, and state management patterns for apps that outgrow useState and Context.

Routing, rendering strategies (SSR, SSG, ISR), server components, and the App Router internals.

Utility-first workflow, config customization, responsive design, and when to break out of utility classes.

Event loop, modules, streams, async patterns, and the runtime fundamentals behind backend JavaScript.

Routing, middleware, error handling, and structuring APIs the way real backend projects expect.

Schema design, indexing, querying, and the document-database thinking that's different from SQL.

Types, interfaces, generics, and the type-system concepts that come up once you move past 'just add : string.'

Tokens, signing, refresh flows, and the security fundamentals behind stateless auth systems.

Pipelines, stages, and the aggregation framework for when a simple find() isn't enough.

The commands you actually use — branching, merging, rebasing, and recovering when something goes wrong.