|
| 1 | +What is React and why is it used? |
| 2 | + |
| 3 | +How is React different from Angular or Vue? |
| 4 | + |
| 5 | +What is a React component? |
| 6 | + |
| 7 | +How do you create a component in React? |
| 8 | + |
| 9 | +What is JSX and why do we use it in React? |
| 10 | + |
| 11 | +Can you explain the virtual DOM in React? |
| 12 | + |
| 13 | +What are the differences between a class component and a functional component? |
| 14 | + |
| 15 | +How do you handle events in React? |
| 16 | + |
| 17 | +What are state and props in React? |
| 18 | + |
| 19 | +How do you pass data between components in React? |
| 20 | + |
| 21 | +What is a stateful component? |
| 22 | + |
| 23 | +Can you explain how useState works? |
| 24 | + |
| 25 | +How do you update the state of a parent component from a child component? |
| 26 | + |
| 27 | +What is lifting state up in React? |
| 28 | + |
| 29 | +When do you use Redux or Context API for state management? |
| 30 | + |
| 31 | +Explain the lifecycle methods of a React class component. |
| 32 | + |
| 33 | +How do hooks work in React? |
| 34 | + |
| 35 | +Can you describe the useEffect hook and its purpose? |
| 36 | + |
| 37 | +How do you fetch data with hooks in React? |
| 38 | + |
| 39 | +What rules do you have to follow when using hooks? |
| 40 | + |
| 41 | +How do props work in React? |
| 42 | + |
| 43 | +What is prop drilling and how can you avoid it? |
| 44 | + |
| 45 | +Explain the Context API and its use cases. |
| 46 | + |
| 47 | +How do you use render props? |
| 48 | + |
| 49 | +What is the children prop? |
| 50 | + |
| 51 | +Why is performance optimization important in React? |
| 52 | + |
| 53 | +What is React.memo and when would you use it? |
| 54 | + |
| 55 | +How does PureComponent differ from Component in React? |
| 56 | + |
| 57 | +Can you explain the concept of reconciliation in React? |
| 58 | + |
| 59 | +How can you prevent unnecessary re-renders in React? |
| 60 | + |
| 61 | +How do you apply styles in a React application? |
| 62 | + |
| 63 | +What is CSS-in-JS and how do you implement it in React? |
| 64 | + |
| 65 | +Can you describe how Styled-Components work? |
| 66 | + |
| 67 | +What are the advantages of using Sass or LESS in a React project? |
| 68 | + |
| 69 | +How do you use inline styles in React? |
| 70 | + |
| 71 | +What is React Router? |
| 72 | + |
| 73 | +How do you create dynamic routes in React? |
| 74 | + |
| 75 | +How would you pass data to routes in React Router v5+? |
| 76 | + |
| 77 | +How do you programmatically navigate using React Router? |
| 78 | + |
| 79 | +What are route guards and how can you implement them in React? |
| 80 | + |
| 81 | +What are higher-order components (HOCs)? |
| 82 | + |
| 83 | +Explain the container/presenter (smart/dumb) component pattern. |
| 84 | + |
| 85 | +How would you implement a compound component pattern in React? |
| 86 | + |
| 87 | +Explain the use of custom hooks in React. |
| 88 | + |
| 89 | +What is a render prop pattern? |
| 90 | + |
| 91 | +How do you handle forms in React? |
| 92 | + |
| 93 | +What is controlled and uncontrolled components? |
| 94 | + |
| 95 | +How do you validate forms in React? |
| 96 | + |
| 97 | +What is Formik and how is it used in React forms? |
| 98 | + |
| 99 | +How do you handle file uploads in React? |
| 100 | + |
| 101 | +What are the benefits of using TypeScript with React? |
| 102 | + |
| 103 | +How do you define types for props and state in TypeScript with React? |
| 104 | + |
| 105 | +Explain how to use interfaces with React components and TypeScript. |
| 106 | + |
| 107 | +How do TypeScript generics enhance react components? |
| 108 | + |
| 109 | +Why is testing important in React? |
| 110 | + |
| 111 | +What are some common testing libraries for React? |
| 112 | + |
| 113 | +How do you test a React component with Jest? |
| 114 | + |
| 115 | +Can you explain the difference between shallow rendering and mount rendering in Enzyme? |
| 116 | + |
| 117 | +What is react-testing-library and how is it different from Enzyme? |
| 118 | + |
| 119 | +What are React fragments and why are they useful? |
| 120 | + |
| 121 | +What is React portal and when would you use it? |
| 122 | + |
| 123 | +How does error boundary work in React? |
| 124 | + |
| 125 | +What is server-side rendering and how is it done with React? |
| 126 | + |
| 127 | +Can you explain the concept of suspense and lazy loading in React? |
| 128 | + |
| 129 | +How does React affect SEO? |
| 130 | + |
| 131 | +What strategies would you use to make a React application SEO-friendly? |
| 132 | + |
| 133 | +How can server-side rendering improve SEO with React applications? |
| 134 | + |
| 135 | +What is React Native and how is it different from React? |
| 136 | + |
| 137 | +How do you bridge native modules in React Native? |
| 138 | + |
| 139 | +Can you describe the layout system in React Native? |
| 140 | + |
| 141 | +What is Apollo Client and how does it integrate with React? |
| 142 | + |
| 143 | +How do you manage local state in Apollo Client? |
| 144 | + |
| 145 | +What is Redux and how does it contrast with the Context API? |
| 146 | + |
| 147 | +Can you detail the Redux workflow? |
| 148 | + |
| 149 | +How do you handle side effects in Redux applications? |
| 150 | + |
| 151 | +How do you set up a React project from scratch? |
| 152 | + |
| 153 | +What is Babel and why do we use it with React? |
| 154 | + |
| 155 | +What is Webpack and what role does it play in React development? |
| 156 | + |
| 157 | +How does hot module replacement work in React? |
| 158 | + |
| 159 | +What are the features of create-react-app and how do you eject from it? |
| 160 | + |
| 161 | +How do you handle API calls in React? |
| 162 | + |
| 163 | +What is Axios and how is it used over fetch in React applications? |
| 164 | + |
| 165 | +How would you handle WebSocket connections in a React application? |
| 166 | + |
| 167 | +What are some strategies used to connect a React front end to a backend server? |
| 168 | + |
| 169 | +How would you deploy a React application? |
| 170 | + |
| 171 | +How do you optimize the performance of a React application for production? |
| 172 | + |
| 173 | +What are service workers and how can they benefit a React application? |
| 174 | + |
| 175 | +How do you configure HTTPS in a React app? |
| 176 | + |
| 177 | +Why is accessibility important in web development? |
| 178 | + |
| 179 | +How can you make a React application accessible? |
| 180 | + |
| 181 | +What is ARIA and how it is used in React? |
| 182 | + |
| 183 | +What is internationalization (i18n) in React? |
| 184 | + |
| 185 | +How do you implement localization (l10n) in a React app? |
| 186 | + |
| 187 | +How do you structure large React applications? |
| 188 | + |
| 189 | +What are some best practices when writing React code? |
| 190 | + |
| 191 | +How do you ensure code quality and maintainability in a React project? |
| 192 | + |
| 193 | +How do you manage feature branches in React development with Git? |
| 194 | + |
| 195 | +What are your strategies for resolving merge conflicts in React projects? |
| 196 | + |
| 197 | +How would you handle a feature request or bug report in an ongoing React project? |
| 198 | + |
| 199 | +Describe your process for optimizing a component that has complex state logic and several child components. |
0 commit comments