React JS Basic Interview Questions To Know

If you’re preparing for a React JS job interview, it’s important to be familiar with some basic concepts and questions that often come up during the interview process. Here are a few common questions you should know:

1. What is React JS?

React JS is a JavaScript library for building user interfaces. It was developed by Facebook and has become one of the most popular front-end frameworks in recent years.

2. What are the key features of React JS?

Some key features of React JS include virtual DOM, reusable components, and unidirectional data flow. Understanding these features is crucial for working effectively with React.

3. What is JSX?

JSX is a syntax extension for JavaScript that allows you to write HTML-like code within your JavaScript files. It makes it easier to create and manipulate React elements.

4. What is the difference between state and props in React?

State is used to store data that can be changed within a component, while props are used to pass data from a parent component to a child component. Understanding how to manage state and props is essential for building React applications.

5. What are React hooks?

React hooks are functions that allow you to use state and other React features within functional components. Hooks like useState and useEffect have become an essential part of React development.

Conclusion

These are just a few of the basic questions you might encounter in a React JS job interview. By understanding these concepts and being able to articulate your knowledge, you’ll be better prepared to impress potential employers and land your dream job in React development.