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Node is asynchronous, meaning it can handle multiple requests at once without blocking the main thread.
Node uses an event-driven, non-blocking I/O model
Callbacks are used to handle asynchronous operations
Example: Reading a file using fs module
Example: Making an HTTP request using http module
MongoDB is better suited for handling unstructured data and offers better scalability and performance compared to MySQL.
MongoDB is a NoSQL database that allows for flexible and dynamic schema design.
MongoDB is better suited for handling large amounts of unstructured data, such as social media posts or sensor data.
MongoDB offers better scalability and performance compared to MySQL, especially for write-heavy applic...
Two way binding in Angular allows automatic synchronization of data between the model and the view.
Two way binding is achieved using the ngModel directive.
Changes made in the view are automatically reflected in the model and vice versa.
It simplifies the code and reduces the need for manual event handling.
Example:
A callback is a function passed as an argument to another function, which is then invoked inside the outer function.
Callbacks are used to execute code asynchronously, such as when an event occurs or when data is retrieved from a server.
They are commonly used in JavaScript for event handling, AJAX requests, and timers.
Callbacks can also be used for error handling, allowing the caller to handle errors that occur ins...
CRUD stands for Create, Read, Update, and Delete. It refers to the basic operations performed on a database.
Create - inserting new data into the database
Read - retrieving data from the database
Update - modifying existing data in the database
Delete - removing data from the database
CRUD operations are essential for managing data in a database
Examples include adding a new user, updating a product's price, or deleting...
Synchronous data in Node.js can be handled using callbacks or promises.
Use callbacks to handle synchronous data in Node.js
Promises can also be used to handle synchronous data
Avoid using synchronous code in Node.js as it can block the event loop
Observables are a way to handle asynchronous data streams in Angular.
Observables are similar to Promises but can emit multiple values over time.
They can be created using the RxJS library.
They are often used for handling HTTP requests and real-time data updates.
Operators can be used to transform, filter, and combine observables.
Subscriptions are used to listen to the emitted values and handle errors and completion.
Express is a web application framework for Node.js. RESTful API is an architectural style for building web services.
Express is a popular framework for building web applications using Node.js
It provides a set of features for handling HTTP requests and responses
RESTful API is an architectural style for building web services that use HTTP methods to perform CRUD operations
It uses standard HTTP methods like GET, POST,...
I applied via Recruitment Consultant and was interviewed in Jul 2019. There were 3 interview rounds.
Two way binding in Angular allows automatic synchronization of data between the model and the view.
Two way binding is achieved using the ngModel directive.
Changes made in the view are automatically reflected in the model and vice versa.
It simplifies the code and reduces the need for manual event handling.
Example:
Express is a web application framework for Node.js. RESTful API is an architectural style for building web services.
Express is a popular framework for building web applications using Node.js
It provides a set of features for handling HTTP requests and responses
RESTful API is an architectural style for building web services that use HTTP methods to perform CRUD operations
It uses standard HTTP methods like GET, POST, PUT,...
Node is asynchronous, meaning it can handle multiple requests at once without blocking the main thread.
Node uses an event-driven, non-blocking I/O model
Callbacks are used to handle asynchronous operations
Example: Reading a file using fs module
Example: Making an HTTP request using http module
Synchronous data in Node.js can be handled using callbacks or promises.
Use callbacks to handle synchronous data in Node.js
Promises can also be used to handle synchronous data
Avoid using synchronous code in Node.js as it can block the event loop
CRUD stands for Create, Read, Update, and Delete. It refers to the basic operations performed on a database.
Create - inserting new data into the database
Read - retrieving data from the database
Update - modifying existing data in the database
Delete - removing data from the database
CRUD operations are essential for managing data in a database
Examples include adding a new user, updating a product's price, or deleting a cu...
MongoDB is better suited for handling unstructured data and offers better scalability and performance compared to MySQL.
MongoDB is a NoSQL database that allows for flexible and dynamic schema design.
MongoDB is better suited for handling large amounts of unstructured data, such as social media posts or sensor data.
MongoDB offers better scalability and performance compared to MySQL, especially for write-heavy application...
Observables are a way to handle asynchronous data streams in Angular.
Observables are similar to Promises but can emit multiple values over time.
They can be created using the RxJS library.
They are often used for handling HTTP requests and real-time data updates.
Operators can be used to transform, filter, and combine observables.
Subscriptions are used to listen to the emitted values and handle errors and completion.
A callback is a function passed as an argument to another function, which is then invoked inside the outer function.
Callbacks are used to execute code asynchronously, such as when an event occurs or when data is retrieved from a server.
They are commonly used in JavaScript for event handling, AJAX requests, and timers.
Callbacks can also be used for error handling, allowing the caller to handle errors that occur inside t...
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I applied via Campus Placement and was interviewed before Mar 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Nov 2019. There were 3 interview rounds.
I'm seeking new challenges and opportunities for growth that align with my career goals and aspirations.
Desire for professional growth: I'm looking to expand my skill set and take on more leadership responsibilities.
Seeking a better cultural fit: My current company has a different work culture than what I thrive in; I value collaboration and innovation.
Interest in new technologies: I'm excited about working with cuttin...
I applied via Recruitment Consulltant and was interviewed before Apr 2021. There were 3 interview rounds.
Standard Aptitude questions
Based on strings and array
I applied via Company Website and was interviewed before Oct 2020. There were 3 interview rounds.
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via LinkedIn and was interviewed before Jul 2021. There were 2 interview rounds.
Easy logical questions
basic quant
Easy level coding questions
Counting frequency of alphabets
Multiple dispatch is not a feature of Redux. It can be achieved using middleware or custom logic.
Middleware like redux-thunk or redux-saga can be used to dispatch multiple actions based on a single action.
Custom logic can be implemented in the reducer to handle multiple actions based on a single action type.
For example, a single 'ADD_ITEM' action can trigger multiple actions like 'UPDATE_TOTAL', 'UPDATE_HISTORY', etc.
M...
posted on 19 May 2021
I applied via Walk-in and was interviewed before May 2020. There were 3 interview rounds.
C++ is a high-level programming language used for developing system software, application software, device drivers, and video games.
C++ is an extension of the C programming language.
It supports object-oriented programming concepts like classes, inheritance, polymorphism, and encapsulation.
C++ is used in developing operating systems, browsers, databases, and other software applications.
It is known for its performance an...
A data structure that stores a sequence of elements in a linear order.
Consists of nodes that contain data and a pointer to the next node.
Can be singly linked or doubly linked.
Used for implementing stacks, queues, and hash tables.
Example: Singly linked list - 1 -> 2 -> 3 -> null
Example: Doubly linked list - null <- 1 <-> 2 <-> 3 -> null
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