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I applied via Approached by Company and was interviewed in May 2023. There were 3 interview rounds.
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
I applied via Approached by Company and was interviewed in Feb 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Sep 2022. There were 3 interview rounds.
Use React.memo, useCallback, and shouldComponentUpdate to reduce unnecessary re-renders.
Use React.memo to memoize functional components and prevent re-renders when props don't change.
Use useCallback to memoize functions and prevent re-creation on every render.
Use shouldComponentUpdate to prevent class components from re-rendering unnecessarily.
Avoid using inline functions in render methods as they create new function i...
Polyfill is a code that provides modern functionality on older browsers.
Polyfills are used to fill the gap between modern and older browsers.
They are written in JavaScript and provide functionality that is not natively supported by the browser.
Polyfills can be used for Array methods like forEach, map, filter, reduce, etc.
Here's an example of a polyfill for the Array.prototype.forEach method: Array.prototype.forEach = f
Program to remove duplicates from an array
Create a new empty array
Loop through the original array and check if the element already exists in the new array
If not, add it to the new array
Return the new array
Prototype Inheritance is a way of creating objects based on existing objects.
It allows objects to inherit properties and methods from other objects.
It is a feature of object-oriented programming in JavaScript.
It helps in creating efficient and reusable code.
Example: A 'Car' object can inherit properties and methods from a 'Vehicle' object.
Web storages include local storage, session storage, and cookies. Session storage is not available in other tabs or windows.
Local storage persists even after the browser is closed, while session storage is cleared when the session ends.
Cookies are used for storing small amounts of data that can be accessed by both the server and client.
Session storage is only available within the same tab or window where it was created...
IndexDB is a client-side storage system for web applications.
It allows storing data in key-value pairs.
It is an alternative to cookies and local storage.
It supports transactions for atomic operations.
It can store large amounts of structured data.
It can be accessed using JavaScript APIs.
Web sockets are a communication protocol that allows real-time bidirectional communication between a client and a server.
Web sockets use a persistent connection between the client and server
They allow for real-time data transfer without the need for constant HTTP requests
Web sockets are commonly used in chat applications, online gaming, and stock trading platforms
To add custom headers to an Axios call, use the headers property in the config object.
Create a config object with the headers property
Pass the config object as the second argument to the Axios call
Example: axios.get(url, { headers: { 'Authorization': 'Bearer token' } })
Event bubbling and capturing are two ways of propagating events in the DOM tree.
Event bubbling is the process of an event propagating from the innermost element to the outermost element in the DOM tree.
Event capturing is the opposite of event bubbling, where the event is captured at the outermost element and propagated to the innermost element.
Event listeners can be added to either the capturing or bubbling phase using...
Seneca Global IT Services interview questions for popular designations
I applied via Naukri.com and was interviewed before Sep 2023. There were 4 interview rounds.
Online assesment having python mcq questions on topic like oop, basic python datatypes etc.
Python code to arrange non zero and negative integers in a list
Iterate through the list and separate non zero and negative integers
Sort the non zero and negative integers separately
Combine the sorted lists to get the final result
I applied via Naukri.com and was interviewed before May 2023. There was 1 interview round.
Memory management is the process of controlling and coordinating computer memory, assigning portions called blocks to various programs.
Memory management involves allocating memory to programs when needed and freeing up memory when no longer needed.
It helps prevent memory leaks and optimize memory usage.
Common memory management techniques include garbage collection, manual memory management, and automatic memory managem...
UITableViews are a type of view in iOS development used to display data in a scrollable list format.
UITableViews are commonly used in iOS apps to display lists of data, such as contacts, messages, or settings.
They consist of rows and sections, with each row representing an item of data.
UITableViews can be customized with different cell types, styles, and layouts.
They support features like scrolling, selection, editing,...
Lazy variable is a variable that is not evaluated until it is needed.
Lazy variables are used to defer the initialization of a variable until it is actually accessed or needed.
They can help improve performance by avoiding unnecessary computations.
Lazy variables are commonly used in functional programming languages like Swift and Kotlin.
CocoaPods is a dependency manager for Swift and Objective-C projects.
CocoaPods is used to easily manage and install third-party libraries in iOS projects.
It uses a Podfile to specify project dependencies and automatically downloads and integrates them.
CocoaPods simplifies the process of adding and updating libraries in Xcode projects.
Example: 'pod 'Alamofire'' adds the Alamofire networking library to a project.
XCTest is a testing framework provided by Apple for writing unit tests for Swift and Objective-C code.
XCTest is integrated into Xcode and allows for writing test methods within test classes.
Test methods are prefixed with the word 'test' and can be used to verify the behavior of code.
XCTest provides assertions like XCTAssert, XCTAssertTrue, XCTAssertFalse, XCTAssertEqual, etc. for validating test results.
Test cases can ...
I applied via Campus Placement and was interviewed before Mar 2021. There were 3 interview rounds.
The GD was good.
Top trending discussions
posted on 15 Jul 2022
I applied via Referral and was interviewed before Jul 2021. There were 3 interview rounds.
If you are a fresher , then this is for you else almost no coding test for experienced candidates.
posted on 16 Sep 2021
I appeared for an interview before Sep 2020.
Round duration - 70 Minutes
Round difficulty - Hard
Prateek is a kindergarten teacher with a mission to distribute candies to students based on their performance. Each student must get at least one candy, and if two s...
The task is to distribute candies to students based on their performance while minimizing the total candies distributed.
Create an array to store the minimum candies required for each student.
Iterate through the students' ratings array to determine the minimum candies needed based on the adjacent ratings.
Consider both left-to-right and right-to-left passes to ensure fair distribution.
Keep track of the total candies dist
You are given a sequence of numbers, ARR
. Your task is to return a sorted sequence of ARR
in non-descending order using the Merge Sort algorithm.
The Merge Sort...
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
Use Divide and Conquer approach to recursively divide the input array into two halves.
Merge the sorted halves to produce a completely sorted array.
Ensure the implementation handles the constraints specified in the problem statement.
Example: For input [3, 1, 4, 1, 5], the output should be [1, 1, 3, 4, 5].
Tip 1 : Practice Atleast 250 Questions
Tip 2 : Do atleast 2 projects
Tip 1 : Do not put false things on resume.
Tip 2 : Have some projects on resume.
posted on 24 Jan 2025
I appeared for an interview before Jan 2024.
Logical reasoning questions (1-1.5 hours)
DSA Questions(2 hours)
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