Infogain Reactjs Developer Interview Questions and Answers

Q1. Basics of Javascript
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Q2. Basics of React
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They asked hacker rank test

Q1. Routing concept
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Q2. React js coding question
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Basic React related questions

Hacker earth test with 29 MCQs and 1 Coding Question

Q1. Basic reactjs Questions with some javascript coding snippets
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Q1. What is ES6 feature small coding on how let,var,const works javascript set , closure (closure with different let scenarios) difference between function and class component use of sort destructure to inser...read more
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Questions related to ReactJS development including ES6 features, lifecycle, custom hooks, and deployment.
• ES6 features include let, const, arrow functions, and destructuring

• Function components are simpler and class components have state and lifecycle methods

• Sort method is used to sort arrays based on a given criteria

• Browser router is used for client-side routing in React applications

• Custom hooks are reusable functions t...read more
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Test will be in hacker rank there would be a difficulty level between easy to medium

Q1. Question will be from data structure and easy to medium level of the programming laanguage question
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Q1. This is just to check your english ability
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Online zoom coding test will be there - 4 questions - 2 about output of code & 2 about technical questions.

Q1. Polymorphism and explain about virtual polymorphism
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Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Virtual polymorphism is achieved through virtual functions in C++.

• Virtual functions allow a function in a base class to be overridden in a derived class.

• Example: Animal class with virtual function 'makeSound' overridden in Dog a
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Q2. Write code for virtual polymorphism and explain
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Virtual polymorphism allows objects of different classes to be treated as objects of a common superclass.
• Create a base class with virtual functions

• Create derived classes that override the virtual functions

• Use pointers or references of the base class to call the overridden functions
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Q1. About yourself should explain
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Q2. Reason for job change
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Q3. Salary negotiations and location
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