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 logic in a source code function. Cyclomatic complexity: if if if if if else … Because cyclomatic complexity concerns itself with decision branches through...

LINQ (Language Integrated Query) is a powerful querying tool in .NET that allows you to perform complex queries directly in C#. The System.Linq.Expressions namespace is a part of LINQ that provides classes, interfaces, enumerations and structures to work with lambda expressions and expression trees. Lambda expressions are a way to create anonymous methods inline where they’re used, usually with the purpose of manipulating data. For example, let’s say you have a list...

Understanding uow to use And and Or operators with Expression Trees As a C# developer, you may have come across scenarios where you need to build complex logical expressions dynamically based on user input or other dynamic factors. In such cases, building expressions statically can become tedious and error-prone. In this article, we’ll explore how to use expression trees to build logical expressions in C#. We’ll start with a simple example that...

Maximizing Performance in Asynchronous Programming Task and Task<TResult> The Task and Task<TResult> types were introduced in .NET 4.0 as part of the Task Parallel Library (TPL) in 2010, which provided a new model for writing multithreaded and asynchronous code. For demonstration purposes, let’s build an example: using System; using System.Diagnostics; using System.Threading.Tasks; public class Program {     public static void Main()     {         long limit = 2;         var stopwatch = new Stopwatch();         Console.WriteLine("Press 'C' key to exit the loop...");         while...

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 used design patterns in .NET development and how they can be applied to solve common problems encountered in software development. What...

In this article, I’ll show you what the basic steps are for converting a SQL query into LINQ. You’ll learn the basic steps needed while we convert an example query. In this article, it's assumed that you have a basic understanding of SQL, and know how to write C# code. Introduction Structured Query Language (SQL) is a powerful language for working with relational databases. It is widely used to retrieve and manipulate data...

What is Kafka? Kafka is a distributed streaming platform developed by the Apache Software Foundation. It is designed to handle high-volume, real-time data streams and is commonly used for building data pipelines, stream processing applications, and real-time analytics. At its core, Kafka is a publish-subscribe messaging system that allows producers to write data to topics and consumers to read data from those topics in real-time. Kafka is highly scalable and fault-tolerant, with...

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. With the release of C# 5.0, async and await keywords were introduced, simplifying asynchronous programming and making it more accessible to developers. The Importance...

Language Integrated Query (LINQ) is a powerful feature in C# .NET that allows developers to query various data sources using a consistent syntax. In this article, we’ll explore some advanced LINQ techniques to help you level up your skills and write more efficient code. LINQ Extension Methods LINQ comes with many built-in extension methods, but you can also create your own custom methods to extend LINQ’s capabilities. Custom Extension Methods By creating your own...

Developing a robust, scalable, and efficient system can be daunting. However, understanding the key concepts and components can make the process more manageable. In this blog post, we’ll explore essential system design components such as DNS, load balancing, API Gateway, and more, along with a concise cheat sheet that can help developers design systems of varying complexity. System Design Blueprint / Cheatsheet A comprehensive visual guide that provides developers with a quick...

NULL - это специальное значение, которое используется в SQL для обозначения отсутствия данных. Оно отличается от пустой строки или нулевого значения, так как NULL означает отсутствие какого-либо значения в ячейке таблицы. История появления NULL в SQL довольно интересна и длинна. В начале 1970-х годов Д. Камерер (D. Chamberlin) и Р. Бойд (R. Boyce) предложили использовать реляционную модель для полной замены иерархических и сетевых моделей данных, которые были актуальны в то время....

Dapper is a lightweight ORM (Object-Relational Mapping) framework for .NET Core and is commonly used to query databases in .NET Core applications. Here are some of the advanced features of Dapper in .NET Core: Multi-Mapping: Dapper allows you to map multiple database tables to a single class. This is useful when you need to retrieve data from multiple tables and map them to a single object. ...

Handy guide how to enhance rating in Google and stand out from the crowd. You’ve deployed a promising website, but Google doesn’t show it in search results at all. I know how you feel. And if you don’t have many visitors, it’s like treasure lost in the desert. The possible reason why search engines ignore your web is because of poor web accessibility and SEO. These two aspects should not be underestimated when...

Accessibility may seem like a highly technical subject, but it’s really about simplicity. Website structure is a significant component of Search Engine Optimization (SEO). It only makes sense to consider SEO and accessibility together so that all users can access your website’s content, regardless of their ability. Since site structure is also a major component of SEO, it only makes sense to consider accessibility and SEO together. In fact, there’s so...

Continuous Integration (CI) allows you to continuously integrate code into a single shared and easy to access repository. Continuous Delivery (CD) allows you to take the code stored in the repository and continuously deliver it to production. CI/CD creates a fast and effective process of getting your product to market before your competition as well as releasing new features and bug fixes to keep your current customers happy. In this blog,...

Often, GraphQL is presented as a revolutionary new way to think about APIs. Instead of working with rigid server-defined endpoints, you can send queries to get exactly the data you’re looking for in one request. And it’s true — GraphQL can be transformative when adopted in an organization, enabling frontend and backend teams to collaborate more smoothly than ever before. But in practice, both of these technologies involve sending an...

Confused about choosing between struct and class in C#? Read this article to understand the differences and make an informed decision. In C#, there are two primary object types that developers can use to build their code: structs and classes. While these two types may seem similar at first glance, they have some key differences that set them apart from each other. In this article, we’ll explore what structs and classes are,...

Microservice architecture is one of the most discussed software architecture trends at the moment, and it has forever changed the way enterprise applications are built. Rather than the slow, complex monolithic approach of the past, developers and companies everywhere are turning to a microservices architecture to simplify and scale their structures. In fact, even companies like Amazon, Netflix, Spotify, and Uber have made the transition. Whether you want to get started with...

JavaScript is a versatile programming language that allows developers to create dynamic and interactive web applications. One common task in web development is to refresh or reload a web page, either to update its content or to trigger certain actions. In this article, we will explore different ways to refresh a page in JavaScript and understand the pros and cons of each approach. Why refresh a page in JavaScript? Refreshing a web page...

HTTP/3 is the latest version of the HTTP protocol, built on top of the QUIC transport protocol. It offers several advantages over its predecessors, including faster and more reliable connections, improved security, and reduced latency. In this article, we will explore how to implement HTTP/3 in your ASP.NET Core application. Step 1: Install the Microsoft.AspNetCore.Server.Kestrel.Https NuGet package To use HTTP/3 in your ASP.NET Core application, you need to install the Microsoft.AspNetCore.Server.Kestrel.Https NuGet...