Intelizign Lifecycle Services Reactjs Developer Interview Questions and Answers

It was an online test. The test was having 25 English questions and 25 coding MCQ questions. Test duration was 60 Mins

Q1. The first part of the interview contained questions related to my work experience.
Ans. I told the interviewer about what I had done in my past roles.
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Q2. After this interviewer gave me a Machine coding round kind of question. I had to display a list of products using the flexbox layout. Also, I had to create a sort button to sort the list and update the vie...read more
Ans. 
Implement a product list with flexbox layout and sorting functionality in React.
• Use React's useState to manage the product list and sorting order.

• Create a Product component to display individual product details.

• Utilize CSS Flexbox for responsive layout: e.g., 'display: flex; flex-wrap: wrap;'.

• Implement a sort function that updates the state based on selected criteria (e.g., price, name).

• Example sort function: 'const so...read more
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Q1. Objective javascript questions
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Q1. Delete duplicate element from array
Ans. 
Remove duplicate elements from an array of strings
• Create a new Set from the array to remove duplicates

• Convert the Set back to an array using the spread operator

• Alternatively, use filter() and indexOf() to remove duplicates
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Q1. About you family etc.
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Q1. 1. What all hooks are available at react functional component 2.what is closure.
Ans. 
React functional components have access to various hooks like useState, useEffect, useContext, etc. Closure is a feature in JavaScript where a function has access to its outer function's scope.
• React hooks available in functional components include useState, useEffect, useContext, useReducer, useCallback, useMemo, useRef, useImperativeHandle, useLayoutEffect, and useDebugValue.

• useState is used to manage state in functio...read more
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Q1. What is Event loop
Ans. 
Event loop is a mechanism in JavaScript that allows for asynchronous operations to be executed in a non-blocking way.
• Event loop is responsible for handling asynchronous operations in JavaScript.

• It allows for non-blocking execution of code by moving asynchronous tasks to the event queue.

• Event loop continuously checks the call stack and the event queue, moving tasks from the queue to the stack when the stack is empty.

• Exa...read more
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Q2. What are closures
Ans. 
Closures are functions that have access to their own scope, as well as the scope in which they were defined.
• Closures allow functions to access variables from their outer scope even after the outer function has finished executing.

• They are commonly used to create private variables in JavaScript.

• Closures are created whenever a function is defined within another function.
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