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During interviews for senior .NET developer positions, technical questions are often asked to test skills and understanding. This article contains seven commonly asked questions based on my experience in various .NET developer interviews, both as an interviewer and a candidate. 1. How to implement asynchronous programming? Asynchronous programming in .NET...

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15 февраля
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Performance comparison between LinkedList and ToArray Some weeks ago I created an article comparing the performance of ToList versus ToArray when creating short lived collections that won’t be mutated, usually used to prevent multiple enumerations when iterating over a temporary LINQ transformation or to ensure mapping exceptions will be thrown...

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15 февраля
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Performance comparison between ToList and ToArray Ever since Microsoft introduced Language Integrated Query to the .NET framework (also known as LINQ) developers have been using it extensively to work with collections. From a simple filter, to an aggregation, to a transformation, LINQ is the technology of choice to keep code...

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25 декабря 2023 г.
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DAPR is an abbreviation for Distributed APplication Runtime. As the name implies, it’s useful for container-based, distributed architectures. It makes life easier when it comes to: Service Discovery. When you deploy multiple instances of your application, then how do you find them? This is where DAPR comes to the rescue....

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20 декабря 2023 г.
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You can run a single monolithic instance of a server application only if the number of clients accessing your application doesn’t exceed a couple of thousand. But what if you expect hundreds of thousands, or even millions, of clients to connect to your application simultaneously? Then a single instance...

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18 декабря 2023 г.
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In C# applications, null reference exceptions are frequently the cause of problems and runtime failures. Appropriate null checks are necessary to protect your code from these kinds of problems. This article will examine many approaches to doing null checks in C#, go over the recommended approach, and provide examples...

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16 декабря 2023 г.
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At some point in our careers, many of us have found ourselves working on a project that requires performance tuning The need to write high performance .NET code should come from performance issues or business needs. Today, we’ll take a look at just a few of the ways we can...

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27 ноября 2023 г.
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Use the Bogus library to generate and insert 1 million dummy product data into the SQL Server database We need to create 1 million dummy product data into the SQL Server database, which can be used for development or performance testing purposes. The Project The project is a console application...

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22 ноября 2023 г.
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There is a simple solution just around the corner Null as a return value is so easy to implement, but it brings many problems. So people make mistakes. That is part of being human. Sometimes it turns out to be a billion-dollar mistake. “I call it my billion-dollar mistake. It...

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27 октября 2023 г.
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A friend reached out recently regarding the usage of Task Parallel Library (TPL) and ConcurrentBag in some .NET code. I inquired what the code was doing and it turns out that for each entry in some workload, it was performing some database operations and API calls. I immediately wondered if...

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26 октября 2023 г.
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How to implement CQRS in ASP.NET using MediatR. A guided example using CQRS with separate Read and Write models using Enity Framework Core for Commands and Dapper for Queries. When people think about CQRS they often think about complex, event-driven, distributed architectures with separate Read and Write databases. Using different...

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24 октября 2023 г.
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Want to switch to that high paying job? Or are you already been preparing hard to give interview the next weekend? Do you know how many people get rejected in interviews by preparing only concepts but not focusing on actually which questions will be asked in the interview? Don’t be...

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14 сентября 2023 г.
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In the world of modern software architecture, reliable communication between different components or microservices is crucial. This is where RabbitMQ, a queue based message broker, can play a vital role. RabbitMQ is a popular choice for implementing message queuing systems, ensuring reliable and scalable communication between various parts of...

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23 июля 2023 г.
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Unlocking Resilience and Transient-fault-handling in Your C# Code In an ideal world, every operation we execute, every API we call, and every database we query, would always work flawlessly. Unfortunately, we live in a world where network outages, server overloads, and unexpected exceptions are common realities. To maintain robust, resilient...

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27 июня 2023 г.
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Introduction Performance optimization is a key concern in software development, regardless of the programming language or platform you’re using. It’s all about making your software run faster or with less memory consumption, leading to better user experience and more efficient resource usage. For .NET developers, understanding and implementing performance...

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8 июня 2023 г.
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At the end of this article you will understand what “^(?=.*[a-z])(?=.*[A-Z])(?=.*).*” means Introduction to C# Regex: why it’s a powerful tool for text manipulation Before diving into the magical world of regular expressions, let’s get an idea of why using C# Regex is important and how it can boost your...

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5 июня 2023 г.
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In this section, we’ll explore the world of unit testing in C# and .NET, learn what unit testing is, why it’s important, and the landscape of testing frameworks and tools available to developers. What is Unit Testing? Unit testing is the process of verifying the correctness of individual units...

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2 июня 2023 г.
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Cyclomatic complexity is a code metric (integer value 1 or more) used to measure how complex a function/method is. It does not take into account lines of code but instead considers complexity to be the distinct paths through a function. Microsoft defines cyclomatic complexity as measuring the amount of decision...

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27 мая 2023 г.
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In today’s fast-paced world of software development, it is crucial to be familiar with design patterns that can help you create robust, efficient, and maintainable code. One of the most widely used programming frameworks for enterprise applications is the .NET framework. In this article, we will explore the most commonly...

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13 мая 2023 г.
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Introduction to Async and Await in C# Asynchronous programming has come a long way in C#. Prior to the introduction of async and await, developers had to rely on callbacks, events and other techniques like the BeginXXX/EndXXX pattern or BackgroundWorker. These methods often led to complex and difficult-to-maintain code....

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1980–... Sergey Drozdov
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