Subjects
Pick a technology to start a practice session or timed assessment.
css
CSS
Selectors, layout, responsive design, and modern CSS.
8 topics25 questions
html
HTML
Semantic structure, forms, accessibility, and modern HTML.
6 topics20 questions
js
JavaScript
Core language mechanics, from variables to the event loop.
9 topics29 questions
nextjs
Next.js
React framework features including routing, rendering, and server-side capabilities.
15 topics45 questions
node
Node.js
Server-side JavaScript, APIs, modules, and runtime fundamentals.
13 topics39 questions
postgres
PostgreSQL
PostgreSQL-specific features, querying, performance, and database administration.
12 topics42 questions
react
React
Components, hooks, state, and rendering behavior.
9 topics33 questions
sql
SQL
Relational querying and database fundamentals.
9 topics34 questions
ts
TypeScript
Static types layered on top of JavaScript.
9 topics32 questions