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Dhwani Rural Information Systems
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I applied via hirect and was interviewed in Mar 2022. There were 2 interview rounds.
Algo for complex UI involves breaking down the UI into smaller components and designing a logical flow.
Identify the main components of the UI
Break down each component into smaller parts
Design a logical flow for the components
Consider user experience and ease of use
Test and iterate on the design
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posted on 9 May 2021
I applied via LinkedIn and was interviewed in Jul 2022. There were 4 interview rounds.
There will be 3 coding questions. They are of medium and hard level.
Sort an array of 0's, 1's, and 2's without using inbuilt functions.
Use three pointers to keep track of the last index of 0's, 1's, and 2's
Iterate through the array and swap elements based on their value
Continue until all elements are sorted
Coding is based scenario question , we have to write the code in paper. There is 1 hour time to complete the coding test.
Find the second most occurrence of string in an array of strings.
Create a dictionary to store the count of each string in the array
Sort the dictionary by count in descending order
Return the key of the second element in the sorted dictionary
ES6 introduced several new features and improvements to JavaScript, making it more powerful and efficient.
Arrow functions for more concise syntax
Let and const for block-scoped variables
Classes for easier object-oriented programming
Template literals for easier string interpolation
Default parameters and rest parameters for function arguments
Destructuring assignment for easier data extraction
Promises for asynchronous prog
Yes, let and const variables are hoisted but not initialized.
let and const variables are hoisted to the top of their block scope, but they are not initialized until the actual line of code is executed.
This means that you cannot access a let or const variable before it is declared in the code.
For example, trying to access a let variable before it is declared will result in a ReferenceError.
Global context refers to the overall environment or setting in which something exists or operates.
Global context encompasses all variables, functions, and objects that are accessible throughout an entire program.
It can be thought of as the 'big picture' view of a program's execution.
In web development, global context includes the window object in JavaScript.
Temporal dead zone is a period during the variable creation process where accessing the variable results in a ReferenceError.
Occurs when trying to access a variable before it has been declared with let or const
Happens due to the variable being in the temporal dead zone until it is declared
Example: accessing a variable before its declaration will result in a ReferenceError
Modules in Node.js are reusable blocks of code that encapsulate related functionality.
Modules in Node.js can be built-in modules like fs (file system) or third-party modules like express.
Modules help in organizing code into separate files for better maintainability and reusability.
Modules can be imported using the require() function in Node.js.
Indexes in MongoDB improve query performance by allowing the database to quickly locate and retrieve specific documents.
Indexes help to speed up query performance by allowing the database to quickly locate specific documents based on the indexed fields.
Without indexes, MongoDB would have to perform a collection scan, which can be slow and resource-intensive.
Indexes can be created on single fields or compound fields to ...
Hooks are a feature in React that allow you to use state and other React features in functional components. useRef is a hook that allows you to create a mutable object that persists for the lifetime of the component.
Hooks are used to add state and lifecycle methods to functional components in React
useRef is used to create a mutable reference that persists between renders
useRef can be used to access DOM elements directl
Mongoose is an Object Data Modeling (ODM) library for MongoDB that provides a higher level of abstraction and simplifies interactions with the database.
Mongoose provides schema validation which helps maintain data integrity.
Mongoose simplifies querying and data manipulation with built-in functions.
Mongoose supports middleware functions for pre and post processing of data operations.
I applied via Referral and was interviewed in Dec 2023. There were 2 interview rounds.
I have 3 years of experience as a Software Developer at XYZ company.
Developed web applications using Java and Spring framework
Collaborated with cross-functional teams to deliver projects on time
Implemented new features and enhancements based on client requirements
I appeared for an interview in Sep 2024.
Couple of MCQ, Two Coding Questions. One medium, One hard.
I appeared for an interview in Mar 2021.
Round duration - 90 minutes
Round difficulty - Easy
Timing was 10:00 AM. Platform was good.
Given an array ARR
of N integers and an integer S, determine if there exists a contiguous subarray within the array with a sum equal to S. If such a subarray exis...
Given an array of integers, find a subarray with a given sum S.
Iterate through the array while keeping track of the current sum and start index.
Use a hashmap to store the sum and its corresponding index.
If the current sum - S is found in the hashmap, a subarray with sum S exists.
Return the start index and current index as the end index.
Given a string S, your task is to recursively remove all consecutive duplicate characters from the string.
String S
Output string
Recursively remove consecutive duplicate characters from a string.
Use recursion to check if the current character is the same as the next character, if so skip the next character
Base case: if string length is 1, return the string
Example: Input: 'aabbc' Output: 'abc'
Tip 1 : Practice Data structure questions.
Tip 2 : Do some projects.
Tip 3 : Have knowledge of DBMS.
Tip 1 : Keep it short.
Tip 2 : Do not put false things on resume.
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