51. What is component composition in React?
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React.js Interview Questions
Found 399 questions
52. What are higher-order components (HOCs)?
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53. What are render props?
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54. What are custom hooks?
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55. How do custom hooks improve code reuse?
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56. What are React portals?
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57. How do portals work internally?
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58. What are refs and forwardRef?
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59. How does React.memo work?
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60. When is React.memo useful and when is it harmful?
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