Walstar Technologies Web Developer Interview Questions and Answers

Aptitude tests will test your ability to perform tasks and react to situations at work.

Coding tests are programming assessment tools used to objectively evaluate a candidate's programming skills across parameters such as problem-solving, coding aptitude, and de-bugging.

Q1. Coding tests are programming assessment tools used to objectively evaluate a candidate's programming skills across parameters such as problem-solving, coding aptitude, and de-bugging.
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Q2. Tell me about yourself. ... Why do you want to work for our company? ... What are your greatest strengths and weaknesses? ... Why are you looking for a change? ... Tell me about the gap in your resume. ...
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Q1. Explain 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 continuously checks the call stack and the callback queue to see if there are any tasks to be executed.

• Tasks from the callback queue are moved to the call stack for execution when the call stack is empty.

• Event loop ensures th...read more
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Q2. Explain React Hooks
Ans. 
React Hooks are functions that let you use state and other React features without writing a class.
• React Hooks were introduced in React 16.8.

• They allow you to use state and other React features in functional components.

• Some commonly used React Hooks are useState, useEffect, useContext, etc.

• Hooks are more readable and easier to maintain compared to class components.
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Q1. Create a Todo app
Ans. 
A simple Todo app to manage tasks and deadlines
• Create a form to add new tasks

• Display a list of tasks with checkboxes to mark as complete

• Include options to edit or delete tasks

• Implement functionality to mark tasks as complete or incomplete

• Add a feature to filter tasks by status (completed/incomplete)
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Q2. Lifecycle methods
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1. how to create a normal form layout like facebook or instagram login page
2. question based on kmp string matching algorithm to check string1 includes string2 or not.
3. validate a form using regex operation .

Q1. Technical questions based upon your skill set & CV like questions upon your projects.
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Q2. 1. basic questions on html css ,js 2. in react redux , props , state , functional , class components .
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Aptitude tests will test your ability to perform tasks and react to situations at work.

Coding tests are programming assessment tools used to objectively evaluate a candidate's programming skills across parameters such as problem-solving, coding aptitude, and de-bugging.

Q1. Coding tests are programming assessment tools used to objectively evaluate a candidate's programming skills across parameters such as problem-solving, coding aptitude, and de-bugging.
Add your answer
Q2. Tell me about yourself. ... Why do you want to work for our company? ... What are your greatest strengths and weaknesses? ... Why are you looking for a change? ... Tell me about the gap in your resume. ...
Add your answer