Q201. Can I use web components in react application?
Yes, you can use web components in a react application. Even though many developers won't use this combination, it may require especially if you are using third-party UI ...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (454 available).
Active:
Tag: react ×
Q202. What is dynamic import?
You can achieve code-splitting in your app using dynamic import. Let's take an example of addition, 1. **Normal Import** ```javascript import { add } from "./math"; conso...
Q203. What are loadable components?
With the release of React 18, React.lazy and Suspense are now available for server-side rendering. However, prior to React 18, it was recommended to use Loadable Componen...
Q204. What is suspense component?
React Suspense is a built-in feature that lets you delay rendering part of the UI until asynchronous work (such as loading a component or fetching data) is ready. While w...
Q205. What is route based code splitting?
One of the best place to do code splitting is with routes. The entire page is going to re-render at once so users are unlikely to interact with other elements in the page...
Q206. What is the purpose of default value in context?
The defaultValue argument is only used when a component does not have a matching Provider above it in the tree. This can be helpful for testing components in isolation wi...
Q207. What is diffing algorithm?
React needs to use algorithms to find out how to efficiently update the UI to match the most recent tree. The diffing algorithms is generating the minimum number of opera...
Q208. What are the rules covered by diffing algorithm?
When diffing two trees, React first compares the two root elements. The behavior is different depending on the types of the root elements. It covers the below rules durin...
Q209. When do you need to use refs?
There are few use cases to go for refs, 1. Managing focus, text selection, or media playback. 2. Triggering imperative animations. 3. Integrating with third-party DOM lib...
Q210. Must prop be named as render for render props?
Even though the pattern named render props, you don’t have to use a prop named render to use this pattern. i.e, Any prop that is a function that a component uses to know ...