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I applied via LinkedIn and was interviewed in Nov 2022. There were 3 interview rounds.
Hoisting is a JavaScript mechanism where variables and function declarations are moved to the top of their scope.
Hoisting applies to variable and function declarations, not initializations
Variables declared with let and const are not hoisted
Function declarations are hoisted before variable declarations
Function expressions are not hoisted
var is function scoped, let and const are block scoped.
var can be redeclared and updated within its scope
let can be updated but not redeclared within its scope
const cannot be updated or redeclared once declared
let and const are not hoisted like var
const must be initialized during declaration
Middlewares are software components that act as a bridge between different applications or systems.
Middlewares are used to handle common functionalities like authentication, logging, and error handling.
They can be implemented as a standalone software or as a part of a larger application.
Examples of middlewares include Express.js middleware, Django middleware, and ASP.NET middleware.
Event loop is a mechanism in JavaScript that allows asynchronous code to be executed.
Event loop continuously checks the call stack and the task queue.
If the call stack is empty, it takes the first task from the queue and pushes it to the call stack.
Event loop is responsible for handling asynchronous operations in JavaScript.
setTimeout, setInterval, and AJAX requests are examples of asynchronous operations that use even
Simple scenario with hypothetical question based on assumptions
Top trending discussions
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
SQL query to retrieve employee names and their salaries from a table
Use SELECT statement to retrieve data
Specify the columns you want to retrieve (employee names and salaries)
Specify the table name where the data is stored
VLOOKUP is a function in Excel used to search for a value in a table and return a corresponding value.
VLOOKUP searches for a value in the first column of a table and returns a value in the same row from a specified column.
The formula syntax is =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]).
Example: =VLOOKUP(A2, B2:D10, 3, FALSE) will search for the value in cell A2 in the range B2:D10 and return the...
posted on 20 Dec 2021
I was interviewed in Oct 2021.
Round duration - 90 Minutes
Round difficulty - Medium
The first round was scheduled in the evening time.
First of all interviewer introduced himself and after my introduction
He directly shoot first DSA question. The question was easy but conceptual. I have solved some question with same concept and he ask me to share the screen and code in online compiler. Finally I was able to get correct output with all the use cases and I was like "Half work done!"
Then he asked me very core concepts of JavaScript along with that Some Output based questions.
Then finally he asked me theory questions on React along with my experience in React.
The interviewer was very helpful as well as polite. I don't think if he will not help me during interview I could crack the interview
Ninja is relocating to a place called NinjaGram, and for school admission, he is required to identify if a given sentence is a pangram. Your task is to assist Ninja in determini...
Yes, the sentence is a pangram if it includes every letter of the English alphabet at least once.
Check if the sentence contains all 26 letters of the English alphabet.
Convert the sentence to lowercase to simplify the checking process.
Use a set to keep track of the letters present in the sentence.
Iterate through the sentence and add each unique letter to the set.
After iterating, check if the set contains all 26 letters.
Tip 1 : Code at least a single problem on your favourite coding platform with proper understanding of concept.
Tip 2 : Work on your resume, specifically try to grab some technical achievements(Hackathons, GSoc, etc) along with your degree which can stand out you from other candidates.
Tip 3 : Ask your friend for some mock interviews which can help you to excel in interview.
Tip 1 : Project description should contain maximum keywords mentioned in Job Description. Success Matrix of project will give you an edge in the interview.
Tip 2 : Resume should be one page along with some clickable GitHub and Achievments links if possible.
Search for a target value in a 2D matrix efficiently.
Use binary search on rows to find the potential row where the target value may exist.
Then use binary search on that row to find the target value.
Find quadraplets in an array that sum up to a target value.
Use a nested loop to iterate through all possible combinations of quadraplets.
Keep track of the sum of each quadraplet and compare it to the target value.
Return the quadraplets that match the target sum.
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
Find the Nth greatest element in an array without sorting
Use a priority queue to keep track of the N greatest elements
Iterate through the array and add elements to the priority queue
Return the top element from the priority queue as the Nth greatest element
Heater Problem - Find minimum radius to cover all houses with heaters
Sort the houses and heaters arrays
For each house, find the closest heater using binary search
Calculate the minimum radius needed to cover all houses
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
Estimate the number of users on the application based on market research, user demographics, and industry trends.
Consider the total addressable market (TAM) for the application
Analyze user demographics and behavior to estimate adoption rate
Look at industry benchmarks and competitor data for reference
Use surveys, focus groups, and user feedback to gather insights
Consider factors like market saturation, growth potential,
I applied via Company Website and was interviewed in Feb 2024. There were 2 interview rounds.
SQL based leetcode medium and hackerrank
Python take home EDA case study assessment
Easy coding questions
Tough level questions , needed high level of thinking
DSA, problem solving
System design interview and prior experience in projects
Three coding online assessments - screening round.
Two to three coding questions based on dynamic programming.
based on 1 interview
Interview experience
Software Development Engineer II
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