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Event loop is a mechanism in JavaScript that handles asynchronous operations.
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 callbacks and promises.
Event loop prevents blocking of the main thread.
A calculator app built using React
Create a component for the calculator
Use state to keep track of the input and result
Implement functions for basic arithmetic operations
Add buttons for each number and operation
Display the input and result on the screen
Higher order functions are functions that take other functions as arguments or return functions as their output.
Higher order functions can be used to create more flexible and reusable code.
They allow for functions to be composed and combined in various ways.
Examples of higher order functions include map, filter, and reduce in JavaScript.
Higher order functions can also be used for currying and partial application.
let, var and const are all used to declare variables in JavaScript, but they differ in their scope and mutability.
let has block scope and can be reassigned
var has function scope and can be reassigned
const has block scope and cannot be reassigned, but its properties can be mutated
Design a database schema for nested comments on a post
Create a table for posts with a unique ID
Create a table for comments with a unique ID, post ID, and parent comment ID
Use foreign keys to link comments to posts and parent comments
Use a recursive function to retrieve nested comments
DBMS stands for Database Management System. It is a software system that allows users to define, create, maintain and control access to databases.
DBMS is used to manage and organize data in a structured manner.
It provides a way to store, retrieve and manipulate data efficiently.
Examples of DBMS include MySQL, Oracle, SQL Server, and MongoDB.
DBMS can be used in various applications such as banking, healthcare, e-co...
MVC stands for Model-View-Controller. It is a software design pattern used for developing web applications.
MVC separates an application into three interconnected components: Model, View, and Controller.
Model represents the data and business logic of the application.
View represents the user interface of the application.
Controller handles the user input and updates the model and view accordingly.
MVP stands for Model...
I applied via Naukri.com and was interviewed before Sep 2021. There were 2 interview rounds.
let, var and const are all used to declare variables in JavaScript, but they differ in their scope and mutability.
let has block scope and can be reassigned
var has function scope and can be reassigned
const has block scope and cannot be reassigned, but its properties can be mutated
Higher order functions are functions that take other functions as arguments or return functions as their output.
Higher order functions can be used to create more flexible and reusable code.
They allow for functions to be composed and combined in various ways.
Examples of higher order functions include map, filter, and reduce in JavaScript.
Higher order functions can also be used for currying and partial application.
A calculator app built using React
Create a component for the calculator
Use state to keep track of the input and result
Implement functions for basic arithmetic operations
Add buttons for each number and operation
Display the input and result on the screen
Design a database schema for nested comments on a post
Create a table for posts with a unique ID
Create a table for comments with a unique ID, post ID, and parent comment ID
Use foreign keys to link comments to posts and parent comments
Use a recursive function to retrieve nested comments
Event loop is a mechanism in JavaScript that handles asynchronous operations.
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 callbacks and promises.
Event loop prevents blocking of the main thread.
I applied via LinkedIn and was interviewed in May 2021. There were 3 interview rounds.
MVC stands for Model-View-Controller. It is a software design pattern used for developing web applications.
MVC separates an application into three interconnected components: Model, View, and Controller.
Model represents the data and business logic of the application.
View represents the user interface of the application.
Controller handles the user input and updates the model and view accordingly.
MVP stands for Model-View...
DBMS stands for Database Management System. It is a software system that allows users to define, create, maintain and control access to databases.
DBMS is used to manage and organize data in a structured manner.
It provides a way to store, retrieve and manipulate data efficiently.
Examples of DBMS include MySQL, Oracle, SQL Server, and MongoDB.
DBMS can be used in various applications such as banking, healthcare, e-commerc...
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posted on 7 May 2022
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Basic aptitude knowledge
Strong in java
I applied via Naukri.com and was interviewed before Jul 2020. There were 3 interview rounds.
Yes, I am comfortable with DEVops if WAS is shutdown.
I have experience with both WAS and DEVops
I understand the dependencies between the two systems
I am confident in my ability to troubleshoot and resolve any issues that may arise
I applied via Referral and was interviewed before Nov 2019. There were 3 interview rounds.
I would remain calm, address the issue professionally, and seek to understand the client's concerns while maintaining respect.
Stay calm and composed to avoid escalating the situation.
Acknowledge the client's feelings: 'I understand this is frustrating for you.'
Redirect the conversation to the issue at hand: 'Let's focus on finding a solution.'
Set boundaries if necessary: 'I appreciate your concerns, but I would prefer ...
Collection hierarchy in Java includes interfaces like Collection, List, Set, Queue, and Map with their respective implementations.
Collection interface is the root interface in the collection hierarchy
List interface extends Collection and allows duplicate elements, with implementations like ArrayList and LinkedList
Set interface extends Collection and does not allow duplicate elements, with implementations like HashSet a...
I applied via Naukri.com and was interviewed before Sep 2019. There were 6 interview rounds.
I applied via Naukri.com and was interviewed in Aug 2018. There was 0 interview round.
I applied via Referral and was interviewed before Jan 2020. There were 5 interview rounds.
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