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React
59 videos • 8,454 views • by Happy Rawat
1
Top 30 React Interview Questions and answers in Hindi
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2
Q. What is React ?What is the Role of React in software development ?
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3
Q. What are the Key Features of React ?
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4
Q. What is DOM ? What is the difference between HTML and DOM ?
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5
Q. What is Virtual DOM ? Difference between DOM and Virtual DOM ?
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6
Q. What are React Components ? What are the main elements of it ?
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7
Q. What is SPA ?
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8
Q. What are the 5 Advantages of React ?
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9
Q. What is the role of JSX in React ?
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10
Q. What is the difference between Declarative and Imperative syntax ?
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11
Q. What is Arrow Function Expression in JSX ?
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12
Q. What are the Main Files in a React project ?
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13
Q. How React App Load and display the components in browser ?
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14
Q. What is the difference between React and Angular ?
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15
Q. Whether React is a Framework or a Library ? What is the difference ?
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16
Q. What are State Stateless Stateful and State Management terms ?
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17
Q. What are Props n JSX ?
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18
Q. What is NPM? What is the role of node modules folder ?
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19
Q. What is the role of index.html page in React ?
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20
Q. What is the role of index.js file and ReactDOM in React ?
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21
Q. What is the role of App.js file in React?
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22
Q. What is the role of function and return inside App.js ?
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23
Q. What is the role of export default inside App.js?
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24
Q. What are the 5 Advantages of JSX ?
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25
Q. What is Babel ?
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26
Q. What is Transpiler?What is the difference between Compiler & Transpiler ?
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27
Q. What are the 5 differences btw Functional components and Class components ?
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28
Q. What is Spread Operator in JSX ?
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29
Q.What are the types of Conditional Rendering in JSX ?
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30
Q. What are React Components? What are the main elements of it ?
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31
Q. What are the Types of React components ? What are Functional Components ?
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32
Q. How do you pass data between functional components in React ?
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33
Q. What is Prop Drilling in React ?
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34
Q. Why to Avoid Prop Drilling ? In how many ways can avoid Prop Drilling ?
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35
Q. What are Class Components In React ?
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36
Q. How to pass data between class components in React ?
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37
Q. What is Routing and Router in React ?
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38
Q. How to Implement Routing in React ?
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39
Q. What are the roles of Routes & Route component in React Routing ?
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40
Q. What are Route Parameters in React Routing ?
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41
Q. What is the role of Switch Component in React Routing ?
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42
Q. What are React Hooks ? What are the Top React Hooks ?
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43
Q. What is the role of useState hook and how it works ?
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44
Q. What is Dependency Array in useEffect hook ?
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45
Q60 What is the role of useEffect ? How it works and what is its use ?
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46
Q. What is the role of useContext hook ?
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47
Q64 What is createContext method ? What are Provider & Consumer properties ?
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48
Q . When to use useContext hook instead of props in real applications ?
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49
Q. What are the similarities between useState and useReducer hook in Hindi
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50
Q. What is useReducer hook ? When to use useState and when useReducer ? in Hindi
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51
Q. What are Component life cycle phases ?
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52
Q. What are Component life cycle methods ? in Hindi
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53
Q. What are Constructors in class components ? When to use them ? in Hindi
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54
Q. What is the role of super keyword in constructor ?
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55
Q. What is the role of render method in component life cycle in Hindi
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56
Top 10 Redux Interview Questions in Hindi
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57
Top 10 React Interview Questions for Candidates having Zero Year of Experience in Hindi
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58
Top 10 React Interview Questions for Candidates having 1 to 2 Years of Experience in Hindi
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59
Top 10 React Interview Questions for Candidates having 2 to 3 Years of Experience in Hindi
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