Why you shouldn’t use String concatenation in your code

Bending the Clean Architecture Principles

Concat memes

Introduction

String concatenation might appear to be a trivial aspect of programming, but in my experience, it has often played a crucial role in the success of multiple projects I’ve worked on. Yet, most developers deem this topic as minimal, small or irrelevant for their use case.

Let’s explore why !

What is string composition?

This is just a fancy word for managing strings, we’re talking about:

• Concatenation
• Interpolation

Concatenation Examples

Programming languages have all sort of ways to concatenate strings. In C#, here a different ways to manipulate string from the top of my head (feel free to comment one if I missed anything) :

1) Standard Operators (+ and +=)

One of the first and common ways to concatenate strings:

var result = "Hello, " + "World!";

2) Using string.Concat

var result = string.Concat("Hello, ", "World!");