Blog
Mert Özen's blog posts on software development, backend, frontend, and DevOps.
Series
.NET Core Web API
36
Angular
31
JavaScript Basics
19
JavaScript Intermediate
18
JavaScript Advanced
16
TypeScript Basics
14
TypeScript Intermediate
14
TypeScript Advanced
12
Entity Framework Core
28
Dapper
16
Git & GitHub
29
Web Security (OWASP Top 10)
21
LLM Fundamentals
20
C# Fundamentals
20
Object-Oriented Programming in C#
16
C# Collections and Generics
11
LINQ
17
Asynchronous Programming in C#
17
Advanced C#
14
C# Versions
6
Backend
PART 01
Why C# Has Generics: ArrayList, Boxing and Type Safety
The price of ArrayList storing everything as object: InvalidCastException pushed to run time, boxing of value types and eight times the memory. Type safety with List<T>, how the runtime sees generic types, and bringing old collections into the generic world with OfType and Cast.
7 Nov 2026
8 min
3
Backend
PART 06
Type Conversions in C#: Cast, Parse, TryParse and Convert
Implicit and explicit conversions in C#, how a cast truncates and overflows, when to use Parse and when TryParse, Convert's rounding and null behavior, culture-dependent parsing that silently multiplies prices by a hundred, and a first look at boxing and unboxing.
7 Nov 2026
8 min
5