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React Interview Questions

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41.

What is React.memo and when should you use it?

intermediate

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42.

What is the difference between useMemo and React.memo?

intermediate

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43.

What is React.lazy and Suspense?

intermediate

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44.

What is code splitting in React?

intermediate

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45.

What are Error Boundaries in React?

intermediate

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46.

How do you handle errors in async operations?

intermediate

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47.

What is React Router and how do you use it?

intermediate

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48.

How do you handle route parameters in React Router?

intermediate

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49.

How do you implement protected routes?

intermediate

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50.

What's the difference between BrowserRouter and HashRouter?

intermediate

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51.

How do you handle form validation in React?

intermediate

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52.

How do you handle different form input types?

intermediate

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53.

How do you test React components?

intermediate

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54.

How do you test components with state and effects?

intermediate

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55.

How do you test async operations and API calls?

intermediate

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56.

How do you test components with Context?

intermediate

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57.

What alternatives exist to Create React App?

intermediate

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58.

What is the difference between development and production builds?

intermediate

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59.

How do you handle environment variables in React?

intermediate

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60.

What are some deployment strategies for React applications?

intermediate

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Showing 41 to 60 of 103 results

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