Q1. What is React? What is the Role of React in software development? Q2. What are the Key Features of React? Q3. What is DOM? What is the difference between HTML and DOM? Q4. What is Virtual DOM? Difference between DOM and Virtual DOM? Q5. What are React Components? What are the main elements of it? Q6. What is SPA(Single Page Application)? Q7. What are the 5 Advantages of React? Q8. What are the Disadvantages of React? Q9. What is the role of JSX in React? (3 points) Q10. What is the difference between Declarative & Imperative syntax? Q1. What is Arrow Function Expression in JSX? V. IMP. Q2. How to Setup React first project? Q3. What are the Main Files in a React project? Q4. How React App Load and display the components in browser? V. IMP. Q5. What is the difference between React and Angular? Q6. What are other 5 JS frameworks other than React? Q7. Whether React is a Framework or a Library? What is the difference? Q8. How React provides Reusability and Composition? Q9. What are State, Stateless, Stateful and State Management terms? Q10. What are Props n JSX? V. IMP. Q1. What is NPM? What is the role of node_modules folder? V. IMP. Q2. What is the role of public folder in React? Q3. What is the role of src folder in React? Q4. What is the role of index.html page in React? V. IMP. Q5. What is the role of index.js file and ReactDOM in React? V. IMP. Q6. What is the role of App.js file in React? V. IMP. Q7. What is the role of function and return inside App.js? Q8. Can we have a function without a return inside App.js? Q9. What is the role of export default inside App.js? Q10. Does the file name and the component name must be same in React Q1. What is the role of JSX in React? (3 points) Q2. What are the 5 Advantages of JSX? Q3. What is Babel? Q4. What is the role of Fragment in JSX? Q5. What is Spread Operator in JSX? Q6. What are the types of Conditional Rendering in JSX? V. IMP. Q7. How do you iterate over a list in JSX? What is map() method? Q8. Can a browser read a JSX File? Q9. What is Transpiler? What is the difference between Compiler & Transpile Q10. Is it possible to use JSX without React? Q1. What are React Components? What are the main elements of it? V. IMP. Q2. What are the Types of React components? What are Functional Components? V. IMP. Q3. How do you pass data between functional components in React? Q4. What is Prop Drilling in React? V. IMP. Q5. Why to Avoid Prop Drilling? In how many ways can avoid Prop Drilling? V. IMP. V. IMP. Q6. What are Class Components In React? Q7. How to pass data between class components in React? Q8. What is the role of this keyword in class components? Q9. What are the 5 differences btw Functional components & Class components? V. IMP. Q1. What is Routing and Router in React? Q2. How to Implement Routing in React? Q3. What are the roles of & component in React Routing? Q4. What are Route Parameters in React Routing? Q5. What is the role of Switch Component in React Routing? Q6. What is the role of exact prop in React Routing? Q1. What are React Hooks? What are the Top React Hooks? Q2. What are State, Stateless, Stateful and State Management terms? Q3. What is the role of useState() hook and how it works? Q4. What is the role of use Effect(). How it works and what is its use? Q5. What is Dependency Array in useEffect() hook? Q6. What is the meaning of the empty array [] in the useEffect()? Q1. What is the role of useContext() hook? Q2. What is createContext() method? What are Provider & Consumer properties? Q3. When to use useContext() hook instead of props in real applications? Q4. What are the similarities between useState() and useReducer() hook? V. IMP. Q5. What is useReducer() hook? When to use useState() and when useReducer()? V. IMP. Q6. What are the differences between useState() and useReducer() Hook? Q7. What are dispatch & reducer function in useReducer Hook? Q8. What is the purpose of passing initial state as an object in UseReducer? Q1. What are Component life cycle phases? Q2. What are Component life cycle methods? Q3. What are Constructors in class components? When to use them? Q4. What is the role of super keyword in constructor? Q5. What is the role of render() method in component life cycle? Q6. How the State can be maintained in a class component? Q7. What is the role of componentDidMount() method in component life cycle? Q1. What are Controlled Components in React? V. IMP. Q2. What are the Differences btw Controlled & Uncontrolled Components? V. IMP. Q3. What are characteristics of controlled components? Q4. What are the advantages of using controlled components in React forms? Q5. How to handle forms in React? Q6. How can you handle multiple input fields in a controlled form? Q7. How do you handle form validation in a controlled component? Q8. In what scenarios might using uncontrolled components be advantageous? Q1. What is Code Splitting in React? Q2. How to Implement Code Splitting in React? Q3. What is the role of Lazy and Suspense methods in React? V. IMP. Q4. What are the Pros and Cons of Code Splitting? Q5. What is the role of the import() function in code splitting? Q6. What is the purpose of the fallback prop in Suspense? Q7. Can you dynamically load CSS files using code splitting in React? Q8. How do you inspect and analyze the generated chunks in a React application?
00:02 Prepare and revise to crack React JS interviews 02:34 Understanding the flow of request in React and the role of React in software development. 07:59 Understanding DOM and its role in web development 10:42 Understanding the difference between DOM and Virtual DOM is crucial in React JS. 16:12 Understanding React components and structure 18:36 Difference between single page and multi page applications 23:10 Understanding React Elements and React Babel Library 25:30 Understanding the difference between declarative and imperative syntax in JavaScript 29:51 Setting up a React project involves installing necessary tools and editors. 31:50 Setting up a React project with default folders and files 36:39 Understanding the flow of React components loading and display 39:17 React is a JavaScript library while Angular is a complete framework. 43:40 Understanding TypeScript OOPs concepts and server-side implications 45:58 React is a library for building user interfaces. 50:13 Introduction to state management in React JS 52:34 Props are a way to pass data from parent to child component. 57:25 The public folder contains static assets served directly to the user browser. 59:56 Role of index.js file in React JS applications 1:04:56 Understanding the role of function and return in app.js file 1:07:16 Introduction to arrow functions and return statement in React JS 1:11:43 Importance of organizing code and naming conventions in React applications 1:13:58 React Babel library converts JavaScript code for browser compatibility 1:18:21 Advantages of React JS 1:20:43 Fragment tags in React help to group child elements without adding extra nodes. 1:25:03 Learn about if-else, ternary operators, and conditional rendering in React JS 1:27:26 Explanation of conditional rendering techniques in JavaScript 1:32:19 Understanding Transpiler vs Compiler in JavaScript 1:34:35 Understanding React components and their types 1:39:15 Using props for data passing between React components 1:41:41 Ways to avoid prop drilling in React JS 1:46:24 Importance of class components and data passing in React JS 1:48:49 Understanding the role of 'this' keyword in React JS 1:53:40 Routing and React Router in React JS 1:56:07 Setting up routing in React JS 2:00:56 Understanding the role of the Switch Component in React Router 2:03:28 React Hooks are inbuilt functions for managing state and life cycle features in functional components. 2:08:22 State management is necessary for updating UI and managing stateful data. 2:10:44 Role of useState hook in managing state 2:15:48 Explanation of useState hook 2:18:03 Understanding the use of the useEffect hook in React JS 2:22:35 Understanding the use of the dependency array in React hooks 2:24:58 Understanding dependency array in React JS 2:29:33 Using context in React for data sharing 2:31:54 Using React Context to avoid prop drilling 2:36:44 Implementing dark theme across website components 2:39:03 Understanding React component life cycle phases 2:43:33 Understanding component life cycle methods 2:45:56 Super keyword in React JS constructor 2:50:33 Introduction to state management in React JS using class components and hooks 2:52:56 Explanation of ComponentDidMount lifecycle method in React component 2:57:46 Understanding state management in React components 3:00:12 Discussing controlled and uncontrolled components in React JS 3:04:53 Control components ensure a single source of truth 3:07:27 Benefits of using Uncontrolled Components for form handling 3:12:17 Code splitting in React JS 3:15:01 Implementing code splitting with React Suspense and Lazy 3:19:31 Component used for fallback UI while lazy loading parent component 3:21:51 Benefits and challenges of small data in React JS 3:26:31 Understanding Higher Order Components in React 3:28:51 Understanding higher order components in React 3:33:54 React and React Native application deployment 3:36:38 React Context API simplifies state management and eliminates prop drilling 3:41:08 React Profiler allows developers to analyze React application performance 3:43:24 Understanding React JS profilers and API calls 3:47:55 Optimizing React application performance 3:50:27 Reactive programming focuses on reacting to changes and events in a declarative and non-imperative programming style. 3:55:32 Explaining the process of passing values between parent and child components in React JS 3:57:52 Encouragement for completing questions and answers
Hi, I am from Pakistan , I just passed my interview for a remote job in a fintech company and this video helped me a lot in React.js and JavaScript question (I also watched your JavaScript interview questions videos) , thank you Sir
Q1. What is React? What is the Role of React in software development? Q2. What are the Key Features of React? Q3. What is DOM? What is the difference between HTML and DOM? Q4. What is Virtual DOM? Difference between DOM and Virtual DOM? Q5. What are React Components? What are the main elements of it? Q6. What is SPA(Single Page Application)? Q7. What are the 5 Advantages of React? Q8. What are the Disadvantages of React? Q9. What is the role of JSX in React? (3 points) Q10. What is the difference between Declarative & Imperative syntax? Q1. 28:05 What is Arrow Function Expression in JSX? V. IMP. Q2. 30:28 How to Setup React first project? Q3. 33:45 What are the Main Files in a React project? Q4. 36:45 How React App Load and display the components in browser? V. IMP. Q5. 39:38 What is the difference between React and Angular? Q6. 44:35 What are other 5 JS frameworks other than React? Q7. Whether React is a Framework or a Library? What is the difference? Q8. How React provides Reusability and Composition? Q9. What are State, Stateless, Stateful and State Management terms? Q10. What are Props n JSX? V. IMP. Q1. What is NPM? What is the role of node_modules folder? V. IMP. Q2. What is the role of public folder in React? Q3. What is the role of src folder in React? Q4. What is the role of index.html page in React? V. IMP. Q5. What is the role of index.js file and ReactDOM in React? V. IMP. Q6. What is the role of App.js file in React? V. IMP. Q7. What is the role of function and return inside App.js? Q8. Can we have a function without a return inside App.js? Q9. What is the role of export default inside App.js? Q10. Does the file name and the component name must be same in React Q1. What is the role of JSX in React? (3 points) Q2. What are the 5 Advantages of JSX? Q3. What is Babel? Q4. What is the role of Fragment in JSX? Q5. What is Spread Operator in JSX? Q6. What are the types of Conditional Rendering in JSX? V. IMP. Q7. How do you iterate over a list in JSX? What is map() method? Q8. Can a browser read a JSX File? Q9. What is Transpiler? What is the difference between Compiler & Transpile Q10. Is it possible to use JSX without React? Q1. What are React Components? What are the main elements of it? V. IMP. Q2. What are the Types of React components? What are Functional Components? V. IMP. Q3. How do you pass data between functional components in React? Q4. What is Prop Drilling in React? V. IMP. Q5. Why to Avoid Prop Drilling? In how many ways can avoid Prop Drilling? V. IMP. V. IMP. Q6. What are Class Components In React? Q7. How to pass data between class components in React? Q8. What is the role of this keyword in class components? Q9. What are the 5 differences btw Functional components & Class components? V. IMP. Q1. What is Routing and Router in React? Q2. How to Implement Routing in React? Q3. What are the roles of & component in React Routing? Q4. What are Route Parameters in React Routing? Q5. What is the role of Switch Component in React Routing? Q6. What is the role of exact prop in React Routing? Q1. What are React Hooks? What are the Top React Hooks? Q2. What are State, Stateless, Stateful and State Management terms? Q3. What is the role of useState() hook and how it works? Q4. What is the role of use Effect(). How it works and what is its use? Q5. What is Dependency Array in useEffect() hook? Q6. What is the meaning of the empty array [] in the useEffect()? Q1. What is the role of useContext() hook? Q2. What is createContext() method? What are Provider & Consumer properties? Q3. When to use useContext() hook instead of props in real applications? Q4. What are the similarities between useState() and useReducer() hook? V. IMP. Q5. What is useReducer() hook? When to use useState() and when useReducer()? V. IMP. Q6. What are the differences between useState() and useReducer() Hook? Q7. What are dispatch & reducer function in useReducer Hook? Q8. What is the purpose of passing initial state as an object in UseReducer? Q1. What are Component life cycle phases? Q2. What are Component life cycle methods? Q3. What are Constructors in class components? When to use them? Q4. What is the role of super keyword in constructor? Q5. What is the role of render() method in component life cycle? Q6. How the State can be maintained in a class component? Q7. What is the role of componentDidMount() method in component life cycle? Q1. What are Controlled Components in React? V. IMP. Q2. What are the Differences btw Controlled & Uncontrolled Components? V. IMP. Q3. What are characteristics of controlled components? Q4. What are the advantages of using controlled components in React forms? Q5. How to handle forms in React? Q6. How can you handle multiple input fields in a controlled form? Q7. How do you handle form validation in a controlled component? Q8. In what scenarios might using uncontrolled components be advantageous? Q1. What is Code Splitting in React? Q2. How to Implement Code Splitting in React? Q3. What is the role of Lazy and Suspense methods in React? V. IMP. Q4. What are the Pros and Cons of Code Splitting? Q5. What is the role of the import() function in code splitting? Q6. What is the purpose of the fallback prop in Suspense? Q7. Can you dynamically load CSS files using code splitting in React? Q8. How do you inspect and analyze the generated chunks in a React application?
Thank you sir, I got selected in TCS(Digita) and your important javascript and this React interview question tutorial helps me lot to cracked my interview 🙏🙏 ...
Hello Sir Your React Js Interview QNA video help me alot to clear the interview. I got selected in Top MNC with 30+ Lpa Package As Tech Lead. Thanks So Much Sir🙏🙏🙏
Sir i am grateful and thankful for you. I studied every subject of MERN and Javascript from you all your 4 hours Video top interview question series on Each topic like react , node , js , express mongodb. I cleared 3 round of technical Interview at VT Netzwelt and started working as Associate Software Engineer today was my first day i don't know what will happen in future but cracking the interview which was not easy if would not prepare well from you. I remember the last question they asked about the profiler in react i said it is used to analyze the react code that you have taught in the interview prep video. Sir i am thankful and grateful for you. God bless you and your family you have saved many life thankyou.
Hi Sir.. I want to share my success story with you. Just because of your guidance in TH-cam video, I got job in top MNC company for ReactJs and I am writing this comment after my probation period finished. Thankyou so much sir ..
hello Sir I follow this full video, and after that I given a React based interview , in there i answered 4 correct questions out 5 , so it it really helpfull, sir plz make video for logical questions for javascript, react ,and angular
Hello sir, i have secured a job at noida, your videos are amazing ❤and i will continue my learning to improve myself for upcoming opportunities. Reminder -sirf videos se kuch nhi hoga, apni journey ko aur better karna ka leyaa bohut important hai videos, must watch while preparing for interviews
sir i have completed all questions.which has been mentioned in this video ,can i give interview as fresher and 6 months experience .your teaching way is very nice sir i am aplauding you sir.
Great work sir! Can you please make a similar video for React Native Interview Questions? I couldn't find a proper video for react native on youtube.There might be many students like me facing the similar issue. Please help us out!!!🥺
Your videos are v useful for learning web dev. Do u have course on web dev also ???? If not plz make course on udemy on web dev and with 1 small and 1 big project . I love ur teaching style, v easy to understand, plz launch course. Tks for all the help. Tc.
Hello sir, i recently saw your videos and started following you. I am working with Cognizant since 2022. I am on bench as my project ramp down. I am a 7 years experienced professional. I didn't get any project yet and its been 35 days now. Today i got mail from hr that we will give additional 6 days and within that if i didn't get into a project its my mistake. I pinged almost 90 project managers for project opening. But very responded and i didn't get any project. Many project i applied were rejected as the so got cancelled. I have tried my bast to get mapped to a project. But they didn't arrange anything to allocate and now they are threatening. What should i do
I can completely understand your situation. 2 things you should do now 1. Try reach out to the managers who handle projects in your skills(ask your previous manager for any reference or account level other project). 2. Most importantly, start looking outside and be ready for internal and external interviews. (Ask HR to give you some more time and in worst case of notice period, don't let any HR to shorten your notice period)
Hi sir, I am always watching your videos. Can you please make Azure interview questions from beginer to advance? Mainly on azure functions. Becuase I am 8 years exp now. Everywhere I am applying they are aksing now for azure mainly functions.
Now I have competed 1 year exp as a sql server+dotnet core+Angular14(Fullstack)developer..so I want take new challenges or responsibilities for my short term goals in IT. But I have an one doubt sir..if iam resign the job after I serve the notice period 30 days so that time day by day 5 days some x companies I have the interviews.. That time Is it require any permission take from manager of iam asking my menager not given any permission that time what can i do and also my thoughts is the I want skip the project development and prepare the interview and attend the interviews is it ok or not .. Is it mandatory notice period also working dau?? Please clear my maind!
Currently working in product based startup company due to fund issue they are not providing salary since last 4 months . currently I am looking for job change. Interviewer asking why you are looking for job change? How to answer this question. Please answer me sir asap I am waiting for your response sir.
First of all Congrats. I suggest Neosoft because in small companies learning curve is good. But ask them and make sure the project tech stack is good and latest.
SIR PLEASE HELP ME 🙏 I'm working as a dotnet developer in MNC and want to switch for core webapi profile please guide me, and can I get your mail ID to send my resume, I donno why I'm not getting any calls as many of my colleagues got the calls and donno what's issue with my resume ? I'm big fan of your work and following channel a year awesome .net content u have provided. Thanks allot
Hi buddy, 3 things you must try: 1. Make sure to give more focus to .NET Core and web api in your resume in your latest project(even if it is in some other tech stack). Add them in your skill set also. 2. Refresh your resume in job portals every week(companies pick only latest resume). 3. Still not getting call, just reduce your notice period to 15 days, check if then you are getting calls. Most importantly HAVE PATIENCE & KEEP PREPARING, don't let any excuse for the day when you get the call. Sorry, but due to my work schedule I can't do one to one discussion. All the best for your career.
Q1. What is React? What is the Role of React in software development? Q2. What are the Key Features of React?
Q3. What is DOM? What is the difference between HTML and DOM? Q4. What is Virtual DOM? Difference between DOM and Virtual DOM? Q5. What are React Components? What are the main elements of it? Q6. What is SPA(Single Page Application)?
Q7. What are the 5 Advantages of React?
Q8. What are the Disadvantages of React?
Q9. What is the role of JSX in React? (3 points)
Q10. What is the difference between Declarative & Imperative syntax?
Q1. What is Arrow Function Expression in JSX? V. IMP.
Q2. How to Setup React first project?
Q3. What are the Main Files in a React project?
Q4. How React App Load and display the components in browser? V. IMP.
Q5. What is the difference between React and Angular?
Q6. What are other 5 JS frameworks other than React?
Q7. Whether React is a Framework or a Library? What is the difference?
Q8. How React provides Reusability and Composition?
Q9. What are State, Stateless, Stateful and State Management terms? Q10. What are Props n JSX? V. IMP.
Q1. What is NPM? What is the role of node_modules folder? V. IMP.
Q2. What is the role of public folder in React?
Q3. What is the role of src folder in React?
Q4. What is the role of index.html page in React?
V. IMP.
Q5. What is the role of index.js file and ReactDOM in React? V. IMP. Q6. What is the role of App.js file in React?
V. IMP.
Q7. What is the role of function and return inside App.js?
Q8. Can we have a function without a return inside App.js?
Q9. What is the role of export default inside App.js?
Q10. Does the file name and the component name must be same in React
Q1. What is the role of JSX in React? (3 points)
Q2. What are the 5 Advantages of JSX?
Q3. What is Babel?
Q4. What is the role of Fragment in JSX?
Q5. What is Spread Operator in JSX?
Q6. What are the types of Conditional Rendering in JSX? V. IMP.
Q7. How do you iterate over a list in JSX? What is map() method?
Q8. Can a browser read a JSX File?
Q9. What is Transpiler? What is the difference between Compiler & Transpile
Q10. Is it possible to use JSX without React?
Q1. What are React Components? What are the main elements of it?
V. IMP.
Q2. What are the Types of React components? What are Functional Components? V. IMP. Q3. How do you pass data between functional components in React?
Q4. What is Prop Drilling in React?
V. IMP.
Q5. Why to Avoid Prop Drilling? In how many ways can avoid Prop Drilling?
V. IMP.
V. IMP.
Q6. What are Class Components In React?
Q7. How to pass data between class components in React?
Q8. What is the role of this keyword in class components?
Q9. What are the 5 differences btw Functional components & Class components? V. IMP.
Q1. What is Routing and Router in React?
Q2. How to Implement Routing in React?
Q3. What are the roles of & component in React Routing?
Q4. What are Route Parameters in React Routing?
Q5. What is the role of Switch Component in React Routing?
Q6. What is the role of exact prop in React Routing?
Q1. What are React Hooks? What are the Top React Hooks?
Q2. What are State, Stateless, Stateful and State Management terms? Q3. What is the role of useState() hook and how it works?
Q4. What is the role of use Effect(). How it works and what is its use?
Q5. What is Dependency Array in useEffect() hook?
Q6. What is the meaning of the empty array [] in the useEffect()?
Q1. What is the role of useContext() hook?
Q2. What is createContext() method? What are Provider & Consumer properties? Q3. When to use useContext() hook instead of props in real applications?
Q4. What are the similarities between useState() and useReducer() hook?
V. IMP.
Q5. What is useReducer() hook? When to use useState() and when useReducer()? V. IMP.
Q6. What are the differences between useState() and useReducer() Hook?
Q7. What are dispatch & reducer function in useReducer Hook?
Q8. What is the purpose of passing initial state as an object in UseReducer?
Q1. What are Component life cycle phases?
Q2. What are Component life cycle methods?
Q3. What are Constructors in class components? When to use them?
Q4. What is the role of super keyword in constructor?
Q5. What is the role of render() method in component life cycle?
Q6. How the State can be maintained in a class component?
Q7. What is the role of componentDidMount() method in component life cycle?
Q1. What are Controlled Components in React?
V. IMP.
Q2. What are the Differences btw Controlled & Uncontrolled Components? V. IMP. Q3. What are characteristics of controlled components?
Q4. What are the advantages of using controlled components in React forms?
Q5. How to handle forms in React?
Q6. How can you handle multiple input fields in a controlled form?
Q7. How do you handle form validation in a controlled component?
Q8. In what scenarios might using uncontrolled components be advantageous?
Q1. What is Code Splitting in React?
Q2. How to Implement Code Splitting in React?
Q3. What is the role of Lazy and Suspense methods in React? V. IMP.
Q4. What are the Pros and Cons of Code Splitting?
Q5. What is the role of the import() function in code splitting?
Q6. What is the purpose of the fallback prop in Suspense?
Q7. Can you dynamically load CSS files using code splitting in React?
Q8. How do you inspect and analyze the generated chunks in a React application?
00:02 Prepare and revise to crack React JS interviews
02:34 Understanding the flow of request in React and the role of React in software development.
07:59 Understanding DOM and its role in web development
10:42 Understanding the difference between DOM and Virtual DOM is crucial in React JS.
16:12 Understanding React components and structure
18:36 Difference between single page and multi page applications
23:10 Understanding React Elements and React Babel Library
25:30 Understanding the difference between declarative and imperative syntax in JavaScript
29:51 Setting up a React project involves installing necessary tools and editors.
31:50 Setting up a React project with default folders and files
36:39 Understanding the flow of React components loading and display
39:17 React is a JavaScript library while Angular is a complete framework.
43:40 Understanding TypeScript OOPs concepts and server-side implications
45:58 React is a library for building user interfaces.
50:13 Introduction to state management in React JS
52:34 Props are a way to pass data from parent to child component.
57:25 The public folder contains static assets served directly to the user browser.
59:56 Role of index.js file in React JS applications
1:04:56 Understanding the role of function and return in app.js file
1:07:16 Introduction to arrow functions and return statement in React JS
1:11:43 Importance of organizing code and naming conventions in React applications
1:13:58 React Babel library converts JavaScript code for browser compatibility
1:18:21 Advantages of React JS
1:20:43 Fragment tags in React help to group child elements without adding extra nodes.
1:25:03 Learn about if-else, ternary operators, and conditional rendering in React JS
1:27:26 Explanation of conditional rendering techniques in JavaScript
1:32:19 Understanding Transpiler vs Compiler in JavaScript
1:34:35 Understanding React components and their types
1:39:15 Using props for data passing between React components
1:41:41 Ways to avoid prop drilling in React JS
1:46:24 Importance of class components and data passing in React JS
1:48:49 Understanding the role of 'this' keyword in React JS
1:53:40 Routing and React Router in React JS
1:56:07 Setting up routing in React JS
2:00:56 Understanding the role of the Switch Component in React Router
2:03:28 React Hooks are inbuilt functions for managing state and life cycle features in functional components.
2:08:22 State management is necessary for updating UI and managing stateful data.
2:10:44 Role of useState hook in managing state
2:15:48 Explanation of useState hook
2:18:03 Understanding the use of the useEffect hook in React JS
2:22:35 Understanding the use of the dependency array in React hooks
2:24:58 Understanding dependency array in React JS
2:29:33 Using context in React for data sharing
2:31:54 Using React Context to avoid prop drilling
2:36:44 Implementing dark theme across website components
2:39:03 Understanding React component life cycle phases
2:43:33 Understanding component life cycle methods
2:45:56 Super keyword in React JS constructor
2:50:33 Introduction to state management in React JS using class components and hooks
2:52:56 Explanation of ComponentDidMount lifecycle method in React component
2:57:46 Understanding state management in React components
3:00:12 Discussing controlled and uncontrolled components in React JS
3:04:53 Control components ensure a single source of truth
3:07:27 Benefits of using Uncontrolled Components for form handling
3:12:17 Code splitting in React JS
3:15:01 Implementing code splitting with React Suspense and Lazy
3:19:31 Component used for fallback UI while lazy loading parent component
3:21:51 Benefits and challenges of small data in React JS
3:26:31 Understanding Higher Order Components in React
3:28:51 Understanding higher order components in React
3:33:54 React and React Native application deployment
3:36:38 React Context API simplifies state management and eliminates prop drilling
3:41:08 React Profiler allows developers to analyze React application performance
3:43:24 Understanding React JS profilers and API calls
3:47:55 Optimizing React application performance
3:50:27 Reactive programming focuses on reacting to changes and events in a declarative and non-imperative programming style.
3:55:32 Explaining the process of passing values between parent and child components in React JS
3:57:52 Encouragement for completing questions and answers
Thanks 🙏
Thanks a lot.
thank you very much
Amazing work 👍
Thank you ❤❤❤
Chapter 1 Basics-I 2:42
Chapter 2 Basics-II 27:15
Chapter 3 React Project - Files & Folders 54:08
Chapter 4 JSX 1:12:16
Chapter 5 Components-Functional/Class 1:34:55
Chapter 6 Routing 1:53:23
Chapter 7 Hooks-usestate/useEffect 2:04:30
Chapter 8 Hook useContext/useReducer 2:28:20
Chapter 11 Components lifecycle Methods -I 2:38:05
Chapter 13 Controlled & Uncontrolled Components 2:57:09
Chapter 14 Code Splitting 3:10:16
Chapter 15 React & Others 3:27:00
Hi, I am from Pakistan , I just passed my interview for a remote job in a fintech company and this video helped me a lot in React.js and JavaScript question (I also watched your JavaScript interview questions videos) , thank you Sir
pls brother mujhe bhi bta do job remote im strugle my life
The best interview preparation channel, material, explanation and offcourse you sir.
Glad you think so!
@@interviewhappy sir we wants ❣️ " React Course " ❣️ form You.
@@interviewhappysir, do interviewer asks to write code in interview?? Tomorrow is my first interview please guide me
Q1. What is React? What is the Role of React in software development? Q2. What are the Key Features of React?
Q3. What is DOM? What is the difference between HTML and DOM? Q4. What is Virtual DOM? Difference between DOM and Virtual DOM? Q5. What are React Components? What are the main elements of it? Q6. What is SPA(Single Page Application)?
Q7. What are the 5 Advantages of React?
Q8. What are the Disadvantages of React?
Q9. What is the role of JSX in React? (3 points)
Q10. What is the difference between Declarative & Imperative syntax?
Q1. 28:05 What is Arrow Function Expression in JSX? V. IMP.
Q2. 30:28 How to Setup React first project?
Q3. 33:45 What are the Main Files in a React project?
Q4. 36:45 How React App Load and display the components in browser? V. IMP.
Q5. 39:38 What is the difference between React and Angular?
Q6. 44:35 What are other 5 JS frameworks other than React?
Q7. Whether React is a Framework or a Library? What is the difference?
Q8. How React provides Reusability and Composition?
Q9. What are State, Stateless, Stateful and State Management terms? Q10. What are Props n JSX? V. IMP.
Q1. What is NPM? What is the role of node_modules folder? V. IMP.
Q2. What is the role of public folder in React?
Q3. What is the role of src folder in React?
Q4. What is the role of index.html page in React?
V. IMP.
Q5. What is the role of index.js file and ReactDOM in React? V. IMP. Q6. What is the role of App.js file in React?
V. IMP.
Q7. What is the role of function and return inside App.js?
Q8. Can we have a function without a return inside App.js?
Q9. What is the role of export default inside App.js?
Q10. Does the file name and the component name must be same in React
Q1. What is the role of JSX in React? (3 points)
Q2. What are the 5 Advantages of JSX?
Q3. What is Babel?
Q4. What is the role of Fragment in JSX?
Q5. What is Spread Operator in JSX?
Q6. What are the types of Conditional Rendering in JSX? V. IMP.
Q7. How do you iterate over a list in JSX? What is map() method?
Q8. Can a browser read a JSX File?
Q9. What is Transpiler? What is the difference between Compiler & Transpile
Q10. Is it possible to use JSX without React?
Q1. What are React Components? What are the main elements of it?
V. IMP.
Q2. What are the Types of React components? What are Functional Components? V. IMP. Q3. How do you pass data between functional components in React?
Q4. What is Prop Drilling in React?
V. IMP.
Q5. Why to Avoid Prop Drilling? In how many ways can avoid Prop Drilling?
V. IMP.
V. IMP.
Q6. What are Class Components In React?
Q7. How to pass data between class components in React?
Q8. What is the role of this keyword in class components?
Q9. What are the 5 differences btw Functional components & Class components? V. IMP.
Q1. What is Routing and Router in React?
Q2. How to Implement Routing in React?
Q3. What are the roles of & component in React Routing?
Q4. What are Route Parameters in React Routing?
Q5. What is the role of Switch Component in React Routing?
Q6. What is the role of exact prop in React Routing?
Q1. What are React Hooks? What are the Top React Hooks?
Q2. What are State, Stateless, Stateful and State Management terms? Q3. What is the role of useState() hook and how it works?
Q4. What is the role of use Effect(). How it works and what is its use?
Q5. What is Dependency Array in useEffect() hook?
Q6. What is the meaning of the empty array [] in the useEffect()?
Q1. What is the role of useContext() hook?
Q2. What is createContext() method? What are Provider & Consumer properties? Q3. When to use useContext() hook instead of props in real applications?
Q4. What are the similarities between useState() and useReducer() hook?
V. IMP.
Q5. What is useReducer() hook? When to use useState() and when useReducer()? V. IMP.
Q6. What are the differences between useState() and useReducer() Hook?
Q7. What are dispatch & reducer function in useReducer Hook?
Q8. What is the purpose of passing initial state as an object in UseReducer?
Q1. What are Component life cycle phases?
Q2. What are Component life cycle methods?
Q3. What are Constructors in class components? When to use them?
Q4. What is the role of super keyword in constructor?
Q5. What is the role of render() method in component life cycle?
Q6. How the State can be maintained in a class component?
Q7. What is the role of componentDidMount() method in component life cycle?
Q1. What are Controlled Components in React?
V. IMP.
Q2. What are the Differences btw Controlled & Uncontrolled Components? V. IMP. Q3. What are characteristics of controlled components?
Q4. What are the advantages of using controlled components in React forms?
Q5. How to handle forms in React?
Q6. How can you handle multiple input fields in a controlled form?
Q7. How do you handle form validation in a controlled component?
Q8. In what scenarios might using uncontrolled components be advantageous?
Q1. What is Code Splitting in React?
Q2. How to Implement Code Splitting in React?
Q3. What is the role of Lazy and Suspense methods in React? V. IMP.
Q4. What are the Pros and Cons of Code Splitting?
Q5. What is the role of the import() function in code splitting?
Q6. What is the purpose of the fallback prop in Suspense?
Q7. Can you dynamically load CSS files using code splitting in React?
Q8. How do you inspect and analyze the generated chunks in a React application?
Thank you sir, I got selected in TCS(Digita) and your important javascript and this React interview question tutorial helps me lot to cracked my interview 🙏🙏 ...
With the help of your video and your TH-cam channel, I cracked the interview. Thanku.....
❤
Hello Sir Your React Js Interview QNA video help me alot to clear the interview. I got selected in Top MNC with 30+ Lpa Package As Tech Lead. Thanks So Much Sir🙏🙏🙏
Konsi mnc bhai ? Linkedin de apna
How many years of experience to get 30lpa ?????
Atleast 8 or ye gyan pel rha h 🙃
Thankyou so much I got 210000000000000 lpa ❤
@@tarunpanwar6983zero count bhi kiya hai ki likh diya bas
Sir i am grateful and thankful for you. I studied every subject of MERN and Javascript from you all your 4 hours Video top interview question series on Each topic like react , node , js , express mongodb. I cleared 3 round of technical Interview at VT Netzwelt and started working as Associate Software Engineer today was my first day i don't know what will happen in future but cracking the interview which was not easy if would not prepare well from you. I remember the last question they asked about the profiler in react i said it is used to analyze the react code that you have taught in the interview prep video. Sir i am thankful and grateful for you. God bless you and your family you have saved many life thankyou.
I’m so happy to hear that my videos helped you land your job!
Congratulations on your first day brother!
This is the best interview preparation video. The way you have explained every topic very easily is really helpful in preparation
You are most welcome
Hi Sir.. I want to share my success story with you. Just because of your guidance in TH-cam video, I got job in top MNC company for ReactJs and I am writing this comment after my probation period finished. Thankyou so much sir ..
hiii
hello Sir I follow this full video, and after that I given a React based interview , in there i answered 4 correct questions out 5 , so it it really helpfull, sir plz make video for logical questions for javascript, react ,and angular
sir 1:12:38 pe jo aapne jese samzaish di wo accha laga or other har chapter end ke bad interviews k loye motivation bhi diya wi b very nice...
Hello sir, i have secured a job at noida, your videos are amazing ❤and i will continue my learning to improve myself for upcoming opportunities.
Reminder -sirf videos se kuch nhi hoga, apni journey ko aur better karna ka leyaa bohut important hai videos, must watch while preparing for interviews
Hello bhai
Which company and which role bro please reply
Mai bhi kal noida aya hu
Best video in internet for react interview 😊
Thanks
2. 27:14
3. 54:13
4. 1:12:17
5. 1:35:11
6. 1:53:22
7. 2:04:20
8. 2:28:29
11. 2:38:35
13. 2:56:56
Salam sir
Today i got job in react after preparation your giving question answer with 30k salary
Thanks sir you are great
Love from mumbai
Warmest congratulations !
Wishing you even more success in the future.
Hello please tell me what was the process?
I started watching his video when I was a student. Now I am a mid level frtontend Reactjs developer
I have completed all my interview topics thank you so much.
I'm glad you found it helpful! Good luck with your interview!
Thank you very much sir. Mera placement hogya !!!!
I'm incredibly proud of all you've accomplished.
Have fun with this exciting career move.
the best motivation is bhut badiya, bhut badiya jaa rhe ho boss....
such good content sir, thanks
Hello i am gurmeet, i just finished that video. video is usefull. thanks sir
Most welcome
Thanks sir, Your way of explanation is very helpful to understand the topics.
Most welcome!
sir i have completed all questions.which has been mentioned in this video ,can i give interview as fresher and 6 months experience .your teaching way is very nice sir i am aplauding you sir.
Make 2 projects with redux toolkit, authentication, Authorization,forms, context api, you can show more than 2 years experience
Sir y video dkhne k bad mera 1000000 ka package lg gya thanks 😂
1:5:02 what is the role of App.js file in react ? v.Imp
Thanks, very well explained 😊
This video is so much helpful. Thanks a lot. from Bangladesh
You are most welcome
ye to pura course hi daldiya bahut badiya
9th 10th and 12th chapter kahan hai
Great work sir! Can you please make a similar video for React Native Interview Questions? I couldn't find a proper video for react native on youtube.There might be many students like me facing the similar issue. Please help us out!!!🥺
just to explain more : empty dependency means that useEffect only run once on the first render when the components mount on the dom
very helpfull video sir thank for making this video🙏🙏🙏🙏. lots of love from nepal and never give up sir we all are with u sir....
So nice of you, Thanks
Great way of learning
Thank you 🤗
I received offer, thanks happy! Please create videos for seniors developer especially on issues
Congrats on the offer! I'll keep that in mind for future videos.
@interviewhappy 😊thanks, willing to learn more in depth from such videos.
We want " React Course " from You on TH-cam ❣️👍👍👍❣️ plz.
Your short motivations are just life savers. Thank you sir 🙂
Most welcome 😊
Very nice, thanks
Your videos are v useful for learning web dev.
Do u have course on web dev also ????
If not plz make course on udemy on web dev and with 1 small and 1 big project .
I love ur teaching style, v easy to understand, plz launch course.
Tks for all the help. Tc.
Hello sir, i recently saw your videos and started following you. I am working with Cognizant since 2022. I am on bench as my project ramp down. I am a 7 years experienced professional. I didn't get any project yet and its been 35 days now. Today i got mail from hr that we will give additional 6 days and within that if i didn't get into a project its my mistake. I pinged almost 90 project managers for project opening. But very responded and i didn't get any project. Many project i applied were rejected as the so got cancelled. I have tried my bast to get mapped to a project. But they didn't arrange anything to allocate and now they are threatening. What should i do
I can completely understand your situation. 2 things you should do now
1. Try reach out to the managers who handle projects in your skills(ask your previous manager for any reference or account level other project).
2. Most importantly, start looking outside and be ready for internal and external interviews.
(Ask HR to give you some more time and in worst case of notice period, don't let any HR to shorten your notice period)
Hi sir , can I connect with you?
Please send mail?
A very thank to you sirji
Hi sir, I am always watching your videos. Can you please make Azure interview questions from beginer to advance? Mainly on azure functions.
Becuase I am 8 years exp now. Everywhere I am applying they are aksing now for azure mainly functions.
Thanks sir for making us interview ready in short time.
I have an interview today, and I'm watching this just a few hours before it starts.
All the best.
@@interviewhappy Thanks sir
Please upload this Top 100 React JS Q&A in English
very helpful, thank you so much sir
You are most welcome
sir ji useReducer hook complete nhi kya apne
Sir you are great.I need this content.Thanks sir 🙏🙏❤
Most welcome
भाई जो ans यहाँ दिए जा रहे है,
Pdf में भी वही है???
Sir make a video on react machine coding round plz
Now I have competed 1 year exp as a sql server+dotnet core+Angular14(Fullstack)developer..so I want take new challenges or responsibilities for my short term goals in IT. But I have an one doubt sir..if iam resign the job after I serve the notice period 30 days so that time day by day 5 days some x companies I have the interviews.. That time Is it require any permission take from manager of iam asking my menager not given any permission that time what can i do and also my thoughts is the I want skip the project development and prepare the interview and attend the interviews is it ok or not .. Is it mandatory notice period also working dau?? Please clear my maind!
2:11:17 hooks
thanku so much sir♥♥♥
Please provide videos on advanced topics of react and redux
Make a series on react machine coding rounds from beginner to advance level.
Sir 400 for a pdf is very high can you reduce it to ₹199 max so that maximum number students can buy that pdf
sir pure MERN ki interview preparation k liye video bnaiye na
How much mongodb is required to learn for mern stack?
We would be very thankful if you could share the quick revision notes for free. 😌
Thank you 🙏
You’re welcome 😊
Please update the 6. Routing questions. Thanks
Sir Please make videos in english i will be very grateful
Already upload hai
Thank you sir
Please upload flutter series interview questions
Currently working in product based startup company due to fund issue they are not providing salary since last 4 months . currently I am looking for job change. Interviewer asking why you are looking for job change? How to answer this question. Please answer me sir asap I am waiting for your response sir.
thnku so much sir
Your Welcome
Good Job
Sir please upload sql interview questions
loved it
Sir .net Interview Questions and Answers kariye sir
bhai log most imp 10 questions batao for freshers ? jiski preparation as a beginner honi hi chahiye ?
Please make next js Interview video
Sir I have offer with Wipro for 7LPA and for neosoft have 10LPA which company I should join ?
First of all Congrats.
I suggest Neosoft because in small companies learning curve is good.
But ask them and make sure the project tech stack is good and latest.
congrats
sir, should I buy the course or this video is enough?
It's upto you. If you understand all these questions. Then that is the next step.
plz complete all hooks and redux concepts
sir jese aapne react node mysql pr interview k questions k pura course ka vidoes bnaya h wese hi expressjs mongodb pr bhi bnaiye na jldi plz
Can you please provide pdf of all this question?
Sir aapki do videos h utube pr react interview questions ki about 3-3 hrs ki to jo ye pdf h usme dono videos ka content hoga..pls reply sir
usecontext and useReducer hook ka questions aadha he h .sirf 3 questions.
Thanks
Welcome
I am unable to find your tutorials in business udemy. Can I get the business udemy links if available?
Today My React js interview
Which company bro? Are u experienced
Which company
how was interview???
Jo bhi result raha ho bhai, ek interview ko apni zindagi mat samjh lena. You are more than that, keep going... keep going...
1:03:50
Please provide chapter no. 12
SIR PLEASE HELP ME 🙏
I'm working as a dotnet developer in MNC and want to switch for core webapi profile please guide me, and can I get your mail ID to send my resume, I donno why I'm not getting any calls as many of my colleagues got the calls and donno what's issue with my resume ? I'm big fan of your work and following channel a year awesome .net content u have provided. Thanks allot
Hi buddy, 3 things you must try:
1. Make sure to give more focus to .NET Core and web api in your resume in your latest project(even if it is in some other tech stack). Add them in your skill set also.
2. Refresh your resume in job portals every week(companies pick only latest resume).
3. Still not getting call, just reduce your notice period to 15 days, check if then you are getting calls.
Most importantly HAVE PATIENCE & KEEP PREPARING, don't let any excuse for the day when you get the call.
Sorry, but due to my work schedule I can't do one to one discussion.
All the best for your career.
@@interviewhappy Thank You so much for these many tips and advices Sir, means allot and enough for me. 🙏😇
Thank u sir
Welcome
usereducer or baki k hooks to btaye nhi ??
5:00
Sir i have purchased your paid content but forgot the mail ID .please help me to download it again
जो ans यहाँ दिए जा रहे है,
Pdf में भी वही है???
Anything for Angular..
Where is the 9. And 10 topic??
please bring java+spring boot and sql
Chapter 8 is half , 9 , 10 , 12 is not present. But its ok rest is good. Thankyou.
भाई जो ans यहाँ दिए जा रहे है,
Pdf में भी वही है???
@@Viral_Vibes_24hr Achha..
@@Viral_Vibes_24hr Per achha se interview ki preparation Kara de hai.
Have you purchased the pdf for interview questions
Why useReduce questions was skipped??
AGR UDEMY SE COURSE BUY KRLU TOH PDF SATH ME MILEGI YA PDF KE LIYE ALG SE PAY KRNA PDEGA
Hii sir fresher can purchase pdf or not react js
Yes you can
@@interviewhappy I have purchased react js pdf it's useful for me clear the interview (fresher)
Hi sir I have attended interviews so many times but I have not selected interviews Please do you say java questions and answers
Java I don't have right now. In future I will create. Just don't give up and keep giving interviews. All the best.
I am 3 yrs experience. Will it worth to buy 200 questions for my next react interview ? Please answer bhaiya
Hi sir, can I connect with you? Please send your email.
Sir .net developer market is down or not ?
switch to react
sir app Uttarakhand se ho ?
Haan ji
Pdf kahn pr hai bro