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Redux is a predictable state container for JavaScript apps. It helps manage the state of an application in a single immutable state tree.
Redux is commonly used with React to manage the state of the application.
Actions are dispatched to update the state in Redux.
Reducers specify how the state changes in response to actions.
Selectors are used to extract specific pieces of state from the Redux store.
Middleware can be used...
Closure is a function that retains access to variables from its parent scope even after the parent function has finished executing.
Closure allows a function to access and manipulate variables from its outer function's scope.
It occurs when a function is defined within another function and the inner function uses variables from the outer function.
Closure helps in creating private variables and functions in JavaScript.
Exa...
Variable declaration in JavaScript
Use 'var', 'let', or 'const' to declare variables
Variables declared with 'var' have function scope
Variables declared with 'let' or 'const' have block scope
Variables declared with 'const' cannot be reassigned
Use descriptive variable names
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I was interviewed before Dec 2020.
Round duration - 360 minutes
Round difficulty - Medium
Basically TCS conduct its flagship event named as CODEVITA . And it offers Internship to prefinal (3rd )year students .
Given an array of integers arr
, where arr[i]
represents the number of pages in the i-th
book, and an integer m
representing the number of students, allocate all the books ...
Allocate books to students in a way that minimizes the maximum number of pages assigned to a student.
Iterate through possible allocations and calculate the maximum pages assigned to a student.
Find the minimum of these maximums to get the optimal allocation.
Return the minimum pages allocated in each test case, or -1 if not possible.
Tip 1 : Good understanding of Data Structure and Algorithms
Tip 2 : Be clear in your Core Subjects.
Tip 3 : Do at least 1 good Project .
Tip 4 : Be humble and speak truth .
Tip 1 : Simple and Crisp .
Tip 2 : Do host your project and mention the link in the resume .
Tip 3 : Single Page
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
2 coding problem of array and another of stack
Callback hell is a situation in asynchronous programming where multiple nested callbacks make the code difficult to read and maintain.
Callback hell occurs when there are multiple levels of nested callbacks in asynchronous code.
It makes the code difficult to understand, debug, and maintain.
Promises and async/await are solutions to avoid callback hell.
Example: nested callbacks in JavaScript AJAX requests.
Props are used to pass data from a parent component to a child component, while state is used to manage data within a component.
Props are read-only and cannot be modified by the child component
State is mutable and can be updated using setState()
Props are passed down from parent to child components
State is managed within a component and can be changed based on user interactions or other events
I applied via Approached by Company and was interviewed in Jun 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
CSS Box-model defines how elements are rendered in a webpage, including padding, border, and margin.
Box-model consists of content, padding, border, and margin
Content area is where text or images are displayed
Padding is the space between content and border
Border is the line around the content and padding
Margin is the space outside the border
Flexbox is for one-dimensional layouts, grid is for two-dimensional layouts.
Flexbox is best for arranging items in a single row or column.
Grid is best for creating complex layouts with rows and columns.
Flexbox is more suitable for smaller scale layouts, while grid is better for larger scale layouts.
Flexbox is more flexible in terms of item order and sizing, while grid provides more control over the overall layout.
Both
I applied via Naukri.com and was interviewed before Mar 2023. There was 1 interview round.
based on 2 interviews
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based on 1 review
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