Quinx Technologies Full Stack Web Developer Interview Questions and Answers

Q1. Difference between let, var and const.
Ans. 
let, var and const are all used for variable declaration in JavaScript, but they have different scopes and behaviors.
• let has block scope, var has function scope, and const is a constant that cannot be reassigned.

• let and const are hoisted but not initialized, while var is hoisted and initialized with undefined.

• Using const for objects and arrays does not make them immutable, only the reference is constant.
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HTML5, CSS, Bootstrap,js, jQuery

Information about my self

Q1. What are the feature advantages ?
Ans. 
Feature advantages refer to the benefits or strengths of a particular feature.
• Enhanced user experience

• Increased functionality

• Improved performance

• Competitive edge in the market

• Cost-effectiveness

• Scalability and flexibility
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Q2. What are the benefits of company ?
Ans. 
Company benefits include competitive salary, health insurance, retirement plans, and opportunities for growth.
• Competitive salary to attract top talent

• Health insurance coverage for employees and their families

• Retirement plans to help employees save for the future

• Opportunities for growth and career development through training programs

• Flexible work hours or remote work options

• Paid time off for vacation and sick days

• Emplo
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Im trying to new and well developing my soft skills. Im always trying to good employee in this job rool .

Q1. HTML. CSS javascript
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Q2. JAVA HTML CSS JAVASCRIPT
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There was 2 DSA coding questions and 2 SQL query questions. Level of questions were medium

Q1. Question were like basic knowledge of OOPS, basic coding questions, hr questions and puzzle questions were asked
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Q1. Do you have an internship opportunity for a Full-stack Developer(Fresher)?
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Q1. Is the internship for a full-stack developer paid?
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Q1. How many years is the internship for a full-stack Developer?
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General aptitude, computer science fundamentals multiple-choice questions, and data structures and algorithms multiple-choice questions were asked.

Q1. Given a string, write a function to reverse the string.
Ans. 
Function to reverse a given string
• Create an empty string to store the reversed string

• Iterate through the input string in reverse order and append each character to the new string

• Return the reversed string
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Q2. Given a sorted array of integers, write a function to perform a binary search to find the index of a target value. If the target value is not found, return -1.
Ans. 
Binary search function to find target value in sorted array
• Define function that takes sorted array and target value as input

• Initialize variables for start, end, and middle indices

• Use while loop to iterate until start is less than or equal to end
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Q1. About the company
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Q2. What are three significant achievements in your life?
Ans. 
Graduating with honors, winning a hackathon, volunteering in a developing country
• Graduated with honors from university with a degree in Computer Science

• Won first place in a hackathon competition by developing a unique and innovative software solution

• Volunteered in a developing country to help build schools and provide education to underprivileged children
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Q1. Javascript questions were mainly there like closures , currying Objects and promises , then they started with React
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Q2. In react they asked about hooks, difference between props and state, version , useMemo , axios working , microservices
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Q1. Why do u want to join us , u already holding an offer
Ans. 
I am drawn to your company's innovative projects and collaborative work environment.
• I am impressed by the cutting-edge technologies and projects your company is working on.

• I value the opportunity to work in a collaborative and supportive team environment.

• I believe that joining your company will provide me with the chance to further develop my skills and contribute meaningfully to impactful projects.
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Q2. How do u prioritize your task
Ans. 
I prioritize tasks based on deadlines, importance, and dependencies.
• I create a list of all tasks and categorize them based on deadlines.

• I identify tasks that are critical to the project's success and prioritize them accordingly.

• I consider dependencies between tasks and prioritize those that are dependent on others being completed first.

• I regularly reassess priorities and adjust as needed based on changing circumstances...read more
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