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Mariem Moalla - C# Corner

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Mariem Moalla

C#, ASP.NET, WPF, SQL Server

(Tunisia)

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About

I'm Mariem, a passionate .NET developer I create tech content and love making tech more accessible to people in my country.

Activity

const vs readonly vs static readonly in C#

6dUpdated Sep 11, 2026, 12:01 PMArticle

Sealed Classes in C#: When Should You Use Them?

6dUpdated Sep 11, 2026, 4:12 AMArticle

.NET

var vs object vs dynamic in C#

9dUpdated Sep 8, 2026, 3:58 AMArticle

Expertise

Web Development

Value Types vs Reference Types in C#: Storage, Assignment, and When to Use Each

10dUpdated Sep 7, 2026, 11:12 AMArticle

The Evolution of the switch Statement in C#

15dUpdated Sep 2, 2026, 11:32 AMArticle

Web Development

GraphQL for Beginners

17dUpdated Aug 31, 2026, 11:51 AMArticle

ASP.NET Core

How to Build a gRPC Service in .NET from Scratch

21dUpdated Aug 27, 2026, 4:11 AMArticle

.NET

How to Recover a Deleted File in Git After Pushing

23dUpdated Aug 25, 2026, 10:28 AMBlog

Web API

gRPC vs REST

24dUpdated Aug 24, 2026, 11:43 AMArticle

Entity Framework

The Silent Performance Killer: Understanding the N+1 Query Problem in EF Core

29dUpdated Aug 19, 2026, 8:59 AMArticle

Software Architecture/Engineering

Decorator vs Proxy Design Pattern : What’s the Difference?

1moUpdated Aug 18, 2026, 5:16 AMArticle

Azure

Azure App Service vs Azure Functions: When should you choose each?

1moUpdated Aug 17, 2026, 12:12 PMArticle

Adding Parameters to C# Methods Without Breaking Existing Code

1moUpdated Aug 12, 2026, 6:13 AMArticle

ASP.NET Core

CSP Nonces vs Hashes: Lessons I Learned Securing an ASP.NET Core Application

1moUpdated Aug 10, 2026, 11:25 AMArticle

General

Load Balancer vs Reverse Proxy vs API Gateway

1moUpdated Aug 7, 2026, 11:54 AMArticle

ASP.NET Core

Content Security Policy in ASP.NET Core

1moUpdated Aug 5, 2026, 11:17 AMArticle

Internet & Web

Why Every Website Needs a Content Security Policy (CSP)

1moUpdated Aug 5, 2026, 9:56 AMArticle

.NET Core

Beginner's Guide: Authentication & Authorization in Modern Applications

5moUpdated Mar 31, 2026, 9:54 AMArticle

.NET

Observability in .NET with OpenTelemetry

7moUpdated Feb 17, 2026, 11:26 AMArticle

Abstract vs Virtual in C#

7moUpdated Jan 27, 2026, 4:06 AMArticle

Threading

Using Cache in C# with Concurrency

7moUpdated Jan 21, 2026, 4:38 AMArticle

Redis

Cache, Local Storage, and Modern Caching Techniques

8moUpdated Jan 20, 2026, 4:33 AMArticle

Design Patterns & Practices

Understand SOLID Design Principles in 5 Minutes

8moUpdated Jan 20, 2026, 4:32 AMArticle

Software Architecture/Engineering

Domain Driven Design (DDD) for Beginners

9moUpdated Dec 15, 2025, 7:18 AMArticle

Record, Record Struct, and Structural Equality in C#

9moUpdated Dec 15, 2025, 4:53 AMArticle

LINQ

Understanding Any() vs Count()

10moUpdated Nov 17, 2025, 10:39 AMArticle

.NET

.NET 10 Breaking Changes: The New field Keyword

10moUpdated Nov 17, 2025, 7:25 AMArticle

Null Conditional Assignment in C#

10moUpdated Nov 17, 2025, 7:15 AMArticle

What you need to know about Extension Members in C#

10moUpdated Nov 10, 2025, 7:48 AMArticle

Understanding Span<T> in C#

10moUpdated Nov 10, 2025, 7:30 AMArticle

Data Structures and Algorithms (DSA)

Binary Search From Basics

10moUpdated Oct 31, 2025, 5:52 AMArticle

Threading

Why not use Dictionaries in Multi-Thread Apps

11moUpdated Oct 6, 2025, 11:06 AMArticle

C# Strings

C# tips: string.IsNullOrEmpty vs string.IsNullOrWhiteSpace

11moUpdated Oct 3, 2025, 12:28 PMArticle

Data Structures and Algorithms (DSA)

C# Tip: Use Stack<T>, Not List<T>

11moUpdated Oct 2, 2025, 3:09 PMArticle

All you need to know about switch expression and Modern Pattern Matching

1yUpdated Sep 22, 2025, 9:25 AMArticle

C# Performance Hack: Use record struct for Small, Immutable Models

1yUpdated Sep 17, 2025, 4:14 AMArticle

How Async/Await Really Works in C# : A Beginner-Friendly Guide

1yUpdated Sep 8, 2025, 7:39 AMArticle

Why ValueTask Can Save You from Async Overhead

1yUpdated Sep 5, 2025, 5:56 AMArticle

When To Use ToList() and ToArray()?

1yUpdated Aug 20, 2025, 10:16 AMArticle

SQL Server

SQL Server Index Fragmentation: What It Is and How to Fix

1yUpdated Aug 20, 2025, 4:50 AMArticle

When to Use Generic vs Non-Generic Collections in C#

1yUpdated Aug 19, 2025, 8:10 AMArticle

Structured Logging in .NET: Why You Should Avoid String Interpolation

1yUpdated Aug 13, 2025, 4:46 AMArticle

.NET

Everything You Need to Know About Minimal APIs in .NET

1yUpdated Aug 11, 2025, 5:06 AMArticle

Why Readonly Doesn't Make Objects Immutable in C#

1yUpdated Aug 9, 2025, 8:08 AMArticle

How to Write Tests in C# in 5 Steps & TDD Explained

1yUpdated Aug 7, 2025, 11:01 AMArticle

General

Re: Help For Career Selection

1yUpdated Aug 7, 2025, 9:17 AMForum

Stop Looping: Use Dictionary<Guid, T> for Fast Entity Access in .NET

1yUpdated Aug 5, 2025, 6:23 AMArticle