DealShare Frontend Lead Engineer Interview Experience
Frontend Lead Engineer
Summary
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The DealShare Frontend Lead Engineer interview process was comprehensive, consisting of three technical rounds. Candidates can expect a variety of questions, including data structure challenges in the first round, followed by technical discussions and problem-solving in the second round, and practical implementation tasks in the final round. Overall, the difficulty level was medium to high, with a focus on both coding skills and system design knowledge, providing a rigorous assessment for potential Frontend Leads at DealShare.
1
#1Find Start and End Position of Target in Sorted Array
Medium
data-structures
binary-search
arrays
Given an array of integers sorted in non-decreasing order, find the starting and ending position of a target value. If the target is not found, return [-1, -1].
#1
Find Start and End Position of Target in Sorted Array
Given an array of integers sorted in non-decreasing order, find the starting and ending position of a target value. If the target is not found, return [-1, -1].
data-structures
binary-search
arrays
Medium
#2Merge Two Sorted Arrays
Easy
data-structures
arrays
merging
Merge two sorted arrays into a single sorted array.
#2
Merge Two Sorted Arrays
Merge two sorted arrays into a single sorted array.
data-structures
arrays
merging
Easy
2
#1Discuss Recent Project
Easy
project-experience
technical-discussion
professional
Provide detailed information about a recent project you worked on.
#1
Discuss Recent Project
Provide detailed information about a recent project you worked on.
project-experience
technical-discussion
professional
Easy
#2Techniques for Optimizing Performance
Medium
performance-optimization
mobile-applications
discussion
Discuss various techniques for optimizing the performance of mobile applications.
#2
Techniques for Optimizing Performance
Discuss various techniques for optimizing the performance of mobile applications.
performance-optimization
mobile-applications
discussion
Medium
#3Code Output Analysis
Medium
javascript
closures
output-analysis
Analyze the following closure-based counter function and explain its output. The function creates a counter that increments by 5 each time it's called. Show the output of the first and second calls to the function.
javascript
function outer() {
let counter = 0;
return function inner() {
counter += 5;
return counter;
};
}
const count = outer();
console.log(count()); // 5
count();
console.log(count()); // 15#3
Code Output Analysis
Analyze the following closure-based counter function and explain its output. The function creates a counter that increments by 5 each time it's called. Show the output of the first and second calls to the function.
javascript
closures
output-analysis
Medium
javascript
function outer() {
let counter = 0;
return function inner() {
counter += 5;
return counter;
};
}
const count = outer();
console.log(count()); // 5
count();
console.log(count()); // 153
#1Identify Code Issue
Medium
react
useeffect
code-review
Analyze and identify issues in the following useEffect implementation. What improvements can be made?
javascript
useEffect(() => {
const interval = setInterval(() => {
console.log('Interval running');
}, 1000);
}, []);#1
Identify Code Issue
Analyze and identify issues in the following useEffect implementation. What improvements can be made?
react
useeffect
code-review
Medium
javascript
useEffect(() => {
const interval = setInterval(() => {
console.log('Interval running');
}, 1000);
}, []);4
#1Create a Stopwatch
Medium
application-development
stopwatch
practical-implementation
Implement a stopwatch application that includes start, stop, and reset functionalities.
#1
Create a Stopwatch
Implement a stopwatch application that includes start, stop, and reset functionalities.
application-development
stopwatch
practical-implementation
Medium
#2Abort Axios Request
Medium
axios
abortcontroller
api-requests
Explain how to abort an ongoing Axios API request using the AbortController API.
#2
Abort Axios Request
Explain how to abort an ongoing Axios API request using the AbortController API.
axios
abortcontroller
api-requests
Medium
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ritwik chakraborty
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