Technologies Coding Problems Bookmarks Learning Paths

Technologies Coding Problems Bookmarks Learning Paths

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What are route prefixes? | Router | react Interview Questions | NextRound.in

Questions

11 of 14

1What are different ways to redirect in react?

2Implement Data mode of routing?

3Implement Layout and Index routes in Data mode of routing?

4Discuss route object?

5How can we handle dynamic segments of a route in declarative routing ?

6Discuss react router?

7List important routing related hooks?

8Implement nested routes in Data mode of routing?

9Implement nested routes in declarative mode?

10How to set a route prefix in data mode?

11What are route prefixes?

12What are layout routes and index routes?

13How to link to routes from components?

14Implement declarative mode to implement router?

react

State and Props

Class Components

Function Components

Lifecycle functions

Performance Optimisation

11 / 14

What are route prefixes?

Difficulty: 5/10

React Router, basename, route prefix

Route Prefix is a Route with path but without an element prop, it adds a path prefix to its child routes, without introducing a parent layout.

javascript

Scenario Questions

0-2 years experience

1We have a small React app using React Router. How would you set up a route prefix so that all routes are under '/app' without repeating the prefix in each Route component?
2If you add a new page at '/app/settings' but forget to include the prefix in the Link component, what will the user see when they click it?

2-5 years experience

1You’re adding a feature module that should be accessible under '/admin'. The team is using BrowserRouter with a basename. Explain how you would configure the router and why the existing routes might break after you add the new module.

Follow-up Questions

How does the basename affect the value returned by useLocation?
What issues can arise if a nested route changes its prefix at runtime?
Are there any gotchas when lazy‑loading modules under a common prefix?

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2During QA, a tester reports that navigating directly to '/admin/users' results in a 404, but clicking through the UI works. What could be causing this and how would you debug it?

5-8 years experience

1Our application is being deployed under different base paths for each client (e.g., '/clientA', '/clientB'). Discuss the trade‑offs between using the BrowserRouter basename prop versus a custom route‑prefix component, especially regarding code‑splitting and server‑side rendering.
2We need to support deep linking and server‑side rendering for routes with a common prefix. How would you ensure that the prefix is correctly handled both on the client and the server without duplicating configuration?

8+ years experience

1The company is moving from a monolithic React app to a micro‑frontend architecture where each micro‑frontend is served under its own path prefix. What architectural considerations around route prefixes, shared navigation, and bundle loading would you raise, and how would you structure the routing layer to stay maintainable across teams?
2Legacy parts of the app still use hash routing while new modules use BrowserRouter with a basename. Propose a migration strategy that minimizes user‑visible breakage and keeps SEO intact, addressing how route prefixes are reconciled across the two systems.