Q1. JavaScript Related Questions
Add your answer
Q2. ReactJs Related Questions
Add your answer

Q1. Reactjs Use Effects and UseRef
Add your answer
Q2. JavaScript Closures,Map,CallBack
Add your answer

It was a hacker coding test mostly javascript questions

Q1. React advance concept
Add your answer
Q2. Context api how to use that
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props manually.
• Create a context using createContext() method

• Use the Provider component to wrap the components that need access to the context

• Access the context data using the useContext() hook within the consuming components
Answered by AI
Add your answer
Q3. Higher order component
Add your answer

Q1. Mainly introduction, how do you manage a project
Add your answer
Q2. How to debug a code
Ans. 
Debugging a code involves identifying and fixing errors in the code to ensure it runs correctly.
• Use console.log() statements to print out values and check for errors

• Utilize browser developer tools to inspect elements and debug JavaScript

• Step through the code using breakpoints to identify the source of the issue

• Review error messages and stack traces to pinpoint the problem

• Consider using tools like linters and debuggers
Answered by AI
Add your answer
Q3. How to get employee details using group by
Ans. 
Employee details can be retrieved using group by clause in SQL.
• Use GROUP BY clause in SQL to group employee details based on a specific column

• Aggregate functions like COUNT, SUM, AVG can be used with GROUP BY to get summarized employee details

• Example: SELECT department, COUNT(*) as total_employees FROM employees GROUP BY department
Answered by AI
Add your answer

Q1. What is react and it's advantage
Ans. 
React is a JavaScript library for building user interfaces.
• React allows for the creation of reusable UI components

• It uses a virtual DOM for efficient rendering

• React is declarative, making it easier to understand and debug code
Answered by AI
Add your answer
Q2. React life cycle
Add your answer
Q3. Questions related to Redux
Add your answer
Q4. Simple app using redux
Ans. 
Creating a simple app using Redux for state management in a front end application.
• Set up Redux store with reducers and actions

• Connect components to Redux store using mapStateToProps and mapDispatchToProps

• Dispatch actions to update state in Redux store

• Use combineReducers to manage multiple reducers
Answered by AI
Add your answer

Q1. Previous project
Add your answer
Q2. Agile process followed in project
Ans. 
Agile process involves iterative development, frequent collaboration, and adaptability to changes.
• Daily stand-up meetings to discuss progress and roadblocks

• Sprints for focused development and testing

• Continuous feedback and iteration based on user input

• Use of tools like Jira or Trello for project management
Answered by AI
Add your answer

Q1. Salary discussion
Add your answer
Q2. Work location discussion
Add your answer

Q1. What is aptitude
Add your answer
Q2. Front end developer in how much are there
Ans. 
Front end developers are in high demand due to the increasing importance of user experience in web development.
• Front end developers work on the client side of web development, focusing on the user interface and user experience.

• They are responsible for implementing designs, optimizing performance, and ensuring cross-browser compatibility.

• Front end developers often use HTML, CSS, and JavaScript, as well as frameworks lik...read more
Answered by AI
Add your answer
Q3. 3 or 4 maximum that's it
Add your answer
Q4. What isreasoning
Ans. 
Reasoning is the mental process of thinking, understanding, and forming conclusions.
• Reasoning involves using logic and critical thinking to make sense of information.

• It helps in problem-solving and decision-making by analyzing and evaluating evidence.

• Types of reasoning include inductive reasoning, deductive reasoning, and abductive reasoning.
Answered by AI
Add your answer
Q5. How to get success interview
Add your answer

React js Assessments

Q1. How to handle state in functional components.
Ans. 
State in functional components can be managed using the useState hook in React.
• Use the useState hook to declare state variables in functional components.

• useState returns an array with the current state value and a function to update that value.

• Example: const [count, setCount] = useState(0);

• State variables should be immutable, so always use the setter function to update them.
Answered by AI
Add your answer
Q2. What is event loop in javascript.
Ans. 
Event loop in JavaScript is responsible for handling asynchronous operations by executing callback functions in a non-blocking way.
• Event loop is a mechanism that allows JavaScript to perform non-blocking operations.

• It continuously checks the call stack and the callback queue to see if there are any functions that need to be executed.

• If the call stack is empty, it takes the first function from the callback queue and pus...read more
Answered by AI
Add your answer
Q3. What is hosting in Javascript
Ans. 
Hosting in JavaScript refers to the process of declaring a variable or function before it is used in the code.
• Hosting allows you to use variables and functions before they are declared in the code.

• Variables are hoisted to the top of their scope, while functions are fully hoisted.

• Example: console.log(myVar); var myVar = 10; This will not throw an error because 'myVar' is hoisted to the top of the scope.
Answered by AI
View 1 more answer

Javascript,Angular,Angular Js questions

Q1. Javascript, Angular questions
Add your answer