Template syntax vs JSX: framework design trade-offs?
WHAT IT TESTS: understanding of language design choices and their implications. OUTLINE: templates (Vue, Angular) are declarative, easier to learn, enable static analysis; JSX (React, Solid) is code-based, flexible, familiar to JavaScript developers.
Server-side data fetching in Nuxt 3?
WHAT IT TESTS: understanding Nuxt's data fetching and SSR integration. OUTLINE: use useFetch or useAsyncData to fetch on server, data is serialized and injected into page state, component accesses it as reactive data.
AOT vs JIT compilation: what does ahead-of-time win?
WHAT IT TESTS: understanding of compilation strategies and their trade-offs. OUTLINE: AOT compiles templates at build time (catches errors early, smaller bundle, faster startup), JIT compiles in browser (slower startup, larger bundle, flexible).
Hydration: SSR HTML to interactive app?
WHAT IT TESTS: understanding server rendering and client takeover. OUTLINE: server renders HTML, client JavaScript bootstraps and attaches event listeners (hydration), mismatch occurs if server HTML differs from client render.
Testing shared Vue components: unit, a11y, visuals?
WHAT IT TESTS: ability to architect comprehensive component testing. OUTLINE: unit tests (Vitest/Jest) for logic, accessibility tests (axe, Pa11y) for ARIA/keyboard, visual regression (Percy, Chromatic) for rendering.
Zone.js and change detection optimization in Angular?
WHAT IT TESTS: understanding Angular's async tracking and performance tuning. OUTLINE: zone.js wraps async (timers, events, HTTP), triggering change detection after each; use runOutsideAngular when external libraries fire high-frequency events.
When to adopt Pinia or NgRx over simple services?
WHAT IT TESTS: judgment on when to add complexity. OUTLINE: services work for small apps; use Pinia/NgRx when state is shared across many components, mutations are complex, or debugging/undo matters. RED FLAG: premature adoption or dismissing stores entirely.
Compiler vs runtime reactivity: Svelte, Vue, Angular?
WHAT IT TESTS: deep understanding of framework architecture choices. OUTLINE: Svelte compiles away reactivity (smaller bundles, zero-cost), Vue/Angular use runtime Proxies/zone.js (flexible but heavier).
Compile-time vs runtime prop validation across frameworks?
WHAT IT TESTS: understanding of type safety mechanisms. OUTLINE: TypeScript (compile-time) catches errors before build; Vue props validation (runtime) catches at runtime; tradeoff: TS is stricter, Vue validation is flexible but less safe.
Content projection: slots vs props for composition?
WHAT IT TESTS: understanding of component composition models and when to use templating over data. OUTLINE: slots let parent pass markup (not data) to child, child renders it as-is, vs props pass values; slots excel when parent needs full layout control.
Prerendering vs SSR in SvelteKit: trade-offs?
WHAT IT TESTS: understanding of build-time vs request-time rendering and its implications. OUTLINE: prerender generates static HTML at build, SSR renders on each request, prerender wins on speed but requires static data.
Nuxt 4.4 Adds Custom Fetch Factories and Router v5
Nuxt 4.4 ships createUseFetch factories, Vue Router v5, and 28x faster dev route updates. Custom fetch instances with typed defaults cut API boilerplate, while the router upgrade drops unplugin-vue-router and clears the path for stable typed routes.
Nuxt Agent beta replaces docs chat with MCP assistant
Nuxt Agent beta replaces Kapa.ai with an MCP assistant rendering module cards and StackBlitz links as live UI. It grounds answers in docs and GitHub issues via the same MCP server Cursor uses. Try the ⌘I panel on nuxt.com to see if it cuts your.
Nuxt ships Nuxi AI agent with context-aware docs help
Nuxt's AI agent Nuxi grounds answers in docs, modules, and GitHub issues using your current page context. GitHub sign-in syncs chats across devices, while branching lets you fork conversations. Use it to cut doc-hunting time and find v4 patterns faster.
SvelteKit 2.56 overhauls remote functions, adds TypeScript 6.0
SvelteKit 2.56 overhauls remote functions with breaking changes to query refreshes, caching, and a new run() method, plus TypeScript 6.0 support. The Svelte CLI adds experimental community plugins. Audit your remote function calls before upgrading.
SvelteKit 2.61 breaks remote functions, adds live queries
SvelteKit 2.61 removes .run() from remote queries and rewrites enhance callbacks, forcing refactors. New query.live() adds async-iterable real-time streams. If you use remote functions, check three breaking changes before upgrading.
Angular v22 stabilizes Signal Forms, Aria, Asynchronous Reactivity APIs
Angular v22 promotes Signal Forms, Angular Aria, and Asynchronous Reactivity APIs from developer preview to production-ready status, giving teams stable primitives for reactive forms, accessibility, and async signals without experimental guardrails.
Angular v21 ships while AI models write outdated code
Angular v21 ships while standard AI models still write outdated code. Zoneless architecture and Signals now dominate performance roadmaps. Audit AI PRs for legacy patterns and verify zoneless readiness before Q3.
Angular 21.1 ships with Signal Forms debounce patterns
Angular 21.1 ships with minor fixes. Signal Forms tutorials now show debounced async validators to cut wasted backend API calls. Migration guides for the modern Control Flow syntax are available for apps still on legacy structural directives.
Vue 3.4 Cuts Build Times 44%, Stabilizes defineModel
Vue 3.4 cuts SFC compile times 44% and doubles parser speed while stabilizing defineModel for v-model. The refactored reactivity engine skips redundant computed triggers, reducing re-renders. Upgrade requires Volar 1.8.27+ and matching toolchain versions.