Cars24 Software Development Engineer 2 Interview Experience
Software Development Engineer 2
Summary
AI Powered
The Cars24 Frontend Software Development Engineer 2 interview process consisted of one round focused on technical questions related to JavaScript and React Native. Candidates can expect to answer questions on JavaScript fundamentals, as well as React and React Native concepts such as hooks, components, and performance optimization. Overall, the interview appears to assess both foundational knowledge and practical skills in frontend development comprehensively.
1
#1Difference Between let, var, and const
Easy
javascript
variables
frontend
Explain the differences between let, var, and const in JavaScript, including scopes and hoisting behaviors.
#1
Difference Between let, var, and const
Explain the differences between let, var, and const in JavaScript, including scopes and hoisting behaviors.
javascript
variables
frontend
Easy
#2Working of Hoisting with var and let
Medium
javascript
hoisting
How does hoisting work concerning var and let declarations in JavaScript? Provide an example for clarity.
#2
Working of Hoisting with var and let
How does hoisting work concerning var and let declarations in JavaScript? Provide an example for clarity.
javascript
hoisting
Medium
#3Data Types in JavaScript
Easy
javascript
data-types
How many data types are there in JavaScript? Differentiate between primitive and non-primitive data types.
#3
Data Types in JavaScript
How many data types are there in JavaScript? Differentiate between primitive and non-primitive data types.
javascript
data-types
Easy
#4Spread Operator vs. Rest Operator
Medium
javascript
operators
Explain the difference between the spread operator and the rest operator in JavaScript, illustrating each with examples.
#4
Spread Operator vs. Rest Operator
Explain the difference between the spread operator and the rest operator in JavaScript, illustrating each with examples.
javascript
operators
Medium
#5Shallow Copy vs. Deep Copy
Medium
javascript
copy
Define shallow copy and deep copy in JavaScript. Provide an example to illustrate the difference, especially in the context of object cloning.
#5
Shallow Copy vs. Deep Copy
Define shallow copy and deep copy in JavaScript. Provide an example to illustrate the difference, especially in the context of object cloning.
javascript
copy
Medium
#6Debouncing and Throttling
Medium
javascript
performance
What are debouncing and throttling in JavaScript? Highlight the differences and provide a real-world use case for throttling.
#6
Debouncing and Throttling
What are debouncing and throttling in JavaScript? Highlight the differences and provide a real-world use case for throttling.
javascript
performance
Medium
#7Class Components vs. Functional Components
Medium
react
components
Do you utilize class components in React? If so, explain how they differ from functional components.
#7
Class Components vs. Functional Components
Do you utilize class components in React? If so, explain how they differ from functional components.
react
components
Medium
#8List of React Hooks
Medium
react
hooks
Enumerate all available React hooks and provide examples for their use.
#8
List of React Hooks
Enumerate all available React hooks and provide examples for their use.
react
hooks
Medium
#9Rules for Using Hooks
Medium
react
hooks
What are the rules associated with using hooks in React? Discuss any limitations or common pitfalls.
#9
Rules for Using Hooks
What are the rules associated with using hooks in React? Discuss any limitations or common pitfalls.
react
hooks
Medium
#10useEffect Usage
Medium
react
hooks
lifecycle
Explain the use of useEffect in React. Give an example along with its equivalent lifecycle methods.
#10
useEffect Usage
Explain the use of useEffect in React. Give an example along with its equivalent lifecycle methods.
react
hooks
lifecycle
Medium
#11Custom Hooks Use
Medium
react
hooks
Where else can predefined hooks be utilized beyond functional components in React? Provide details regarding custom hooks.
#11
Custom Hooks Use
Where else can predefined hooks be utilized beyond functional components in React? Provide details regarding custom hooks.
react
hooks
Medium
#12React.memo Mechanism
Medium
react
performance
What is React.memo? How does its second parameter work, and how can it prevent unnecessary re-renders when prop values change?
#12
React.memo Mechanism
What is React.memo? How does its second parameter work, and how can it prevent unnecessary re-renders when prop values change?
react
performance
Medium
#13FlatList vs. ScrollView in React Native
Medium
reactnative
components
What are the differences between FlatList and ScrollView in React Native? Explain when you would use each component.
#13
FlatList vs. ScrollView in React Native
What are the differences between FlatList and ScrollView in React Native? Explain when you would use each component.
reactnative
components
Medium
#14useEffect Return Function
Medium
react
hooks
Apart from component unmounting, when else does the return function inside useEffect get invoked in React? Discuss scenarios.
#14
useEffect Return Function
Apart from component unmounting, when else does the return function inside useEffect get invoked in React? Discuss scenarios.
react
hooks
Medium
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ritwik chakraborty
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