Web / TanStack Interview Questions
What is TanStack Router and how does it differ from Vue Router?
TanStack Router is a fully type-safe client-side router with end-to-end TypeScript inference for route params, search params, and loaders. A misspelled param or a navigation to a non-existent route is a compile-time error, not a runtime bug.
| Feature | TanStack Router | Vue Router |
|---|---|---|
| Type safety | Full inference on params, search params, loaders | Manual typing via module augmentation |
| Search params | First-class typed, validated, serialised state | Plain string parsing, manual validation |
| Data loading | Built-in route loaders with pending/error UI | Manual Pinia/Query integration |
| File-based routing | Yes (optional) | Not built-in |
// main.ts
import { createRouter } from "@tanstack/vue-router"
import { rootRoute } from "./routes/__root"
export const router = createRouter({
routeTree: rootRoute,
defaultPreload: "intent", // prefetch on hover
})
createApp(App).use(router).mount("#app")
// Type-safe navigation
import { useNavigate } from "@tanstack/vue-router"
const navigate = useNavigate()
navigate({ to:"/users/$userId", params:{ userId:"42" } })
// TS error if "userId" is not a valid param for that route
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