| S.No | Question |
|---|---|
| 1. | What is React? |
| 2. | Why React is used? |
| 3. | How React works? |
| 4. | What are the features of ReactJS? |
| 5. | What are the Advantages of React JS? |
| 6. | Does React JS use HTML? |
| 7. | What is JSX? |
| 8. | What are Life Cycle Methods in React? |
| 9. | What is React State? |
| 10. | What are the differences between the Class component and Functional component? |
| 11. | What is props in React? |
| 12. | What are the significant differences between state and props? |
| 13. | What is meant by callback function? What is its purpose? |
| 14. | What do you mean by virtual DOM? |
| 15. | What is an event in React? |
| 16. | What is the difference between Real DOM and virtual DOM? |
| 17. | What do you know about React Router? |
| 18. | Explain the term stateless components ? |
| 19. | When was React first released? |
| 20. | Explain the use of the arrow function in React ? |
| 21. | What is Axios ? |
| 22. | What are the limitations of React? |
| 23. | How can a browser read JSX file? |
| 24. | Is it possible to nest JSX elements into other JSX elements? |
| 25. | Define the term Redux in React? |
| 26. | What is the ‘Store’ feature in Redux? |
| 27. | What is an action in Redux? |
| 28. | What is dispatcher? |
| 29. | Explain the term high order component. |
| 30. | What is ‘create-react-app’? |
| 31. | Explain strict mode. |
| 32. | What is Babel in React js? |
| 33. | What is the reduction? |
| 34. | What are React hooks? Explain the difference between useState and useEffect. |
| 35. | What is Flux Concept In React? |
| 36. | Explain the Presentational segment > |
| 37. | Name two types of React component ? |
| 38. | Explain synthetic event in React js |
| 39. | How can you update state in react js? |
| 40. | Explain pure components in React js . |
| 41. | What kind of information controls a segment in React? |
| 42. | Explain the use of 'key' in react list |
| 43. | What are children prop ? |
| 44. | Explain error boundaries? |
| 45. | What is the use of empty tags ? |
| 46. | What are reacted portals? |
| 47. | What is Context? |
| 48. | What is the use of Webpack? |
| 49. | What are the major issues of using MVC architecture in React? |
| 50. | What can be done when there is more than one line of expression? |
| 51. | When should you use the top-class elements for the function element? |
| 52. | How can you share an element in the parsing? |
| 53. | Explain the term reconciliation |
| 54. | How can you re-render a component without using setState() function? |
| 55. | Can you update props in react? |
| 56. | Explain the term 'Restructuring'. |
| 57. | Can you update the values of props? |
| 58. | Explain the meaning of Mounting and Demounting ? |
| 59. | What is the use of ‘props-types’ liberary? |
| 60. | What is useState() in React ? |
| 61. | What are the differences between controlled and uncontrolled components? |
| 62. | When rendering a list what is a key and what is it's purpose? |
| 63. | Why do React Hooks make use of refs? |
| 64. | What is context? |
| 65 | What is children prop? |
| 66 | What is the difference between Shadow DOM and Virtual DOM? |
| 67 | What is the difference between React and ReactDOM? |
| 68 | What is the purpose of ReactTestUtils package? |
| 69 | What are the core principles of Redux? |
| 70 | How to access Redux store outside a component? |
| 71. | What is the Context API in React? How can it be used to manage global state? |
| 72. | What are React render props? How do they enable component composition and code reusability? |
| 73. | How can you optimize performance in a React application? Discuss techniques like memoization, code splitting, and lazy loading. |
| 74 | What is the difference between component and container in React Redux? |
| 75 | What is the difference between React context and React Redux? |
| 76 | What is Lifting State Up in React? |
| 77 | Why fragments are better than container divs? |
| 78 | What is Jest? |
| 79 | Differentiate React Hooks vs Classes. |
| 80 | Why should we not update the state directly? |
| 81 | What is the difference between HTML and React event handling? |
| 82 | What are fragments? |
| 83 | Differentiate between States and Props. |
| 84 | Describe the lifecycle of a React component and how you would use it to fetch data. |
| 85 | What Strategies would you employ to optimize the performance of a web application ? |
| 86 | What are the SEO chanllanges with SPAs and how can they be addressed ? |
| 87 | How do you ensure your web application is accessible ? |
| 88 | Compare the useState and useReducer hooks in React. |
| 89 | What is tree shaking and how does it help in front-end development ? |
| 90 | What makes a web application a PWA ? |
| 91 | What key performance metrics would you consider critical for a web application ? |
| 92 | How do you protect a front-end application from common security threats ? |
| 93 | Compare server-side rendering (SSR) and client-side rendering (CSR). |
| 94 | How do you manage state in a single-page application (SPA) ? |
| 95 | What strategies and tools do you use for front-end applications. |
Plot No. 64, PU-4, Scheme 54, Behind C21 Mall near Hotel Holiday , AB Road, Indore Pin-code:452001
contact@codebetter.in
+91 88230 75444, +91 99939 28766