Capgemini React Js Frontend Developer Interview Questions, Process, and Tips

Online Hackathon test was taken.

Q1. Tell Me About Yourself.
Ans. 
I am a passionate React Js Frontend Developer with experience in building user-friendly and responsive web applications.
• Experienced in developing web applications using React Js

• Proficient in HTML, CSS, and JavaScript

• Familiar with state management libraries like Redux

• Strong understanding of responsive design principles

• Ability to work collaboratively in a team environment
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Q2. Tell me about your roles and responsibilities in your current project.
Ans. 
I am responsible for developing and maintaining the frontend of the project using React Js.
• Developing user-friendly interfaces using React Js

• Implementing responsive design and ensuring cross-browser compatibility

• Collaborating with backend developers to integrate frontend with backend services

• Optimizing application performance and troubleshooting issues

• Participating in code reviews and providing feedback to team members
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Q3. How we implement SSR in React.
Ans. 
SSR in React is implemented using server-side rendering to pre-render React components on the server before sending them to the client.
• Use libraries like Next.js or Gatsby to implement SSR in React.

• Configure server to render React components on the server side.

• Optimize server-side rendering for performance by caching rendered components.
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Q4. How can we change our project in production mode from development mode.
Ans. 
To change a React project from development mode to production mode, you need to build the project using the 'npm run build' command.
• Run 'npm run build' command in the terminal to create a production build of the project.

• This command will generate a 'build' folder with optimized and minified files for production.

• You can then deploy the contents of the 'build' folder to a web server for production use.
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Q5. What is lazy loading and how we can implement in our project.

Ans. 

Lazy loading is a technique used to defer loading non-essential resources until they are needed.

• Lazy loading helps improve performance by only loading resources when they are required.

• In React, lazy loading can be implemented using React.lazy() and Suspense components.

• Example: const MyComponent = React.lazy(() => import('./MyComponent'));

• Example: Loading...

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