43 interview questions on React ⚛️ for developers (2024)

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Victor Sabatierat Jan 4, 2022

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Victor Sabatierat Jan 4, 2022

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Vincent Cotroat Jan 4, 2022

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Vincent Cotroat Jan 4, 2022

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Clément DEVOSat Jan 4, 2022

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Vincent Cotroat Jan 4, 2022

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Vincent Cotroat Jan 4, 2022

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functional components

Philippeat Mar 9, 2022

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Emilieat May 4, 2023

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43 interview questions on React ⚛️for developers (2024)

Test your technical skills before an interview of React ⚛️ with 43 corrected questions. Beginner, Intermediate or Expert level.

43 interview questions on React ⚛️for developers (2024)

Test your technical skills before an interview of React ⚛️ with 43 corrected questions. Beginner, Intermediate or Expert level.

Write the non-JSX equivalent of the following code:

Write the missing code to render the children of the UserProfile component.

Write a React component as a function

Call a function on the first render of a React component

Save the state used to display the selected page in a React component.

UseState and useEffect in React

Write a React component that displays the sum of two numbers

Write a React component that updates the document title with each click and resets to 'React App' when the component unmounts.

Which statement(s) are true about hooks?

Find the issue with this React code:

Write a React component that displays the number 2

How to optimize a React component to improve its performance?

Use the `useContext` hook to render a button with a dark theme.

Use useCallback to optimize rendering in React

Change the style of a button using the `useState` hook in React.

What are the advantages of SSR(server side rendering)?

Explain how the `memo` hook works in React

Which of these concepts can define React?

Render a list of string from an array in React

Write a React component that displays the name of the current user.