Latest Questions 214 total
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46How do you optimize React application performance?
My React application becomes slow as it grows. What are the best practices for improving performance? I'd like to learn about React.memo, us...
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47How do controlled and uncontrolled components differ in React?
I am learning forms in React and want to know the difference between controlled and uncontrolled components. Which approach is recommended a...
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48What is state lifting in React?
I came across the concept of lifting state up in React. Why is it needed, and when should I move state to a parent component? Please explain...
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49What is React Router, and how do you implement routing?
I am building a React application with multiple pages. How does React Router work, and how do I create navigation between components using R...
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50How do you pass data between parent and child components in React?
I want to understand how data flows between components in React. How do parents send data to children using props, and how can child compone...
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51What is the Virtual DOM, and how does React use it?
I often hear that React uses the Virtual DOM to improve performance. How does it compare the Virtual DOM with the Real DOM, and why is this ...
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52How do useState and useEffect work together in React?
I understand that useState manages state and useEffect handles side effects, but I'm confused about how they work together. Could someone ex...
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53What is the difference between functional and class components in React?
I am learning React and would like to understand the key differences between functional and class components. When should I use each approac...
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