React.js Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

React.js Interview Questions

Questions Answers Views Company eMail

What is the difference between function based component and class based component?

474

What can you do if the expression contains more than one line?

409

Why are browsers unable to read jsx?

448

What is the difference between stateless and stateful component?

477

What are the key benefits of reactjs development?

448

How to install react js on your local machine?

482

What is a state in react and how is it used?

445

What is the component lifecycle in reactjs?

482

What is the difference between element and component?

616

What is flux?

395

Is it possible to use the word class in jsx?

376

How arrow functions are used?

394

What is import in react?

428

In what cases would you use a class component over a functional component?

380

What are class based component?

401

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Un-Answered Questions { React.js }

State the difference between Real DOM and Virtual DOM?

399

What are arrow functions? How are they used?

422

What are the advantages of using reactjs?

503

What is flux concept in reactjs?

435

How is redux different from flux?

450

What is difference between setstate and forceupdate () and finddomnode () in reactjs?

428

What do you understand by mixin or higher order components in reactjs?

374

What are the purpose of render() in react?

416

State the main difference between Pros and State?

504

Give an example of using events?

415

What are the different phases of react component’s lifecycle?

632

How to use events in reactjs? Give an example of using events?

513

What is reactjs-jsx? Explain basic code snippet of jsx with the help of a practical example?

434

Explain the term ‘Restructuring.’

397

How do you do type check in ReactJS?

482

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