Ekart Logistics Front end Developer Interview Questions and Answers

QUANT, MATHS, HTML, CSS

DSA WAS ASKED TOGETHER WITH SOME CORE SUBJECT QUESTIONS.

DSA WAS ASKED TOGETHER WITH SOME PUZZLES.

Q1. BASIC COMMON HR QUES
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Q2. BASIC COMMON HR QUES
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Q1. They have asked about my resume or working experience. how i implemented those features
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Q2. Merge 2 array and sort in ascending order in JS, use Effect Hooks, Debouncing, Throttling, about API integration, how u fetched and make faster API call.
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Q1. What is difference between useState, useContext and redux
Ans. 
useState is for managing state within a component, useContext is for sharing state between components, and redux is for managing global state across the application.
• useState is a React hook used to manage state within a functional component

• useContext is a React hook used to share state between components without prop drilling

• Redux is a state management library that allows for managing global state across the applicatio...read more
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Q2. What is the difference between== and ===
Ans. 
The difference between == and === in JavaScript
• == is the equality operator in JavaScript, which performs type coercion before comparing two values

• === is the strict equality operator, which does not perform type coercion and compares both value and type

• Using === is generally considered safer and more predictable than using ==

• Example: 1 == '1' will return true, but 1 === '1' will return false
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Basic DS algo questions

Q1. Few questions on arrays and string manipulation
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Q1. Some recursion and array problems
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It was on hackerrank, it was given to solve 3 questions in JS along with quiz on js concepts

It was a js fundamental round, was asked similar JS problems asked in the hackerrank test

Q1. Describe your favourite/last project
Ans. 
Developed a responsive e-commerce website for a local boutique selling handmade jewelry
• Used HTML, CSS, and JavaScript to create a visually appealing and user-friendly interface

• Implemented a product carousel to showcase different jewelry collections

• Integrated a payment gateway for secure online transactions
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Q2. How to keep your updated in tech
Ans. 
Stay updated by regularly reading tech blogs, attending conferences, taking online courses, and networking with other professionals.
• Read tech blogs regularly (e.g. TechCrunch, Mashable)

• Attend tech conferences and workshops

• Take online courses and tutorials (e.g. Udemy, Coursera)

• Network with other professionals in the field (e.g. LinkedIn, Meetup)
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Q3. Do you try every new framework comes in the market
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I do not try every new framework that comes in the market, but I do stay updated on the latest trends and evaluate them based on project requirements.
• I prioritize learning frameworks that align with the project needs

• I assess the pros and cons of new frameworks before deciding to use them

• I stay updated on industry trends and experiment with new frameworks in personal projects
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Q4. How will you optimise a code
Ans. 
Optimizing code involves identifying and fixing bottlenecks to improve performance and efficiency.
• Identify and remove unnecessary code or functions

• Use efficient algorithms and data structures

• Minimize network requests and optimize asset loading

• Implement caching mechanisms

• Profile and analyze code performance
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Q1. Java script bubbling concept
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Q1. Asked about lazy loading ?
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Q2. What do you mean by denouncing?
Ans. 
Denouncing refers to publicly declaring something as wrong or evil.
• Denouncing is the act of condemning or criticizing something publicly.

• It is often done to express disapproval or to call attention to a wrongdoing.

• Examples include denouncing acts of violence, discrimination, or corruption.

• Denouncing can also be used in political contexts to criticize policies or actions of a government.
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Q3. How redux state are cleaned ?
Ans. 
Redux state can be cleaned by dispatching an action to reset the state to its initial values.
• Dispatching an action with type 'RESET_STATE'

• Updating the reducer to return the initial state when 'RESET_STATE' action is dispatched
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Q4. Sorting the array
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Q5. Make pagination and sorting coding questions.
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Q1. How Netflix video loading works it was of system design
Ans. 
Netflix uses a content delivery network (CDN) to efficiently load videos based on user location and network conditions.
• Netflix uses a distributed network of servers to store and deliver video content closer to users for faster loading times.

• Content is cached on servers located in various regions to reduce latency and improve streaming quality.

• Netflix employs adaptive bitrate streaming to adjust video quality based on a...read more
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Q2. How can we download csv file of more then 1000mb and show the data that is downloaded while downloading?
Ans. 
To download a large CSV file (>1000mb) and show the data while downloading, use streaming and pagination techniques.
• Implement streaming to download the file in chunks instead of all at once.

• Use pagination to display the downloaded data in parts as it is being downloaded.

• Consider using libraries like PapaParse for parsing CSV data efficiently.

• Show a progress bar or indicator to inform the user about the download status.
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Q3. Pattern question
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Q4. React assingment
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Q1. How many guest can stay in a room?
Ans. 
The number of guests that can stay in a room varies depending on the room type and hotel policy.
• The standard occupancy for a hotel room is usually 2 guests, but some rooms can accommodate more.

• Suites or family rooms may have a higher occupancy limit, typically ranging from 4 to 6 guests.

• Hotels may charge extra for additional guests beyond the standard occupancy.

• Some hotels may offer rollaway beds or sofa beds to accomm
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