Development Principles

Fundamentals and best practices that guide E2D project development

SOLID Principles

Single Responsibility Principle (SRP)

Each component and function has a single, well-defined responsibility. UI components focus only on presentation, while business logic is kept separate.

Open/Closed Principle (OCP)

Components are open for extension but closed for modification. We use composition patterns and props to extend functionality without modifying existing code.

Dependency Inversion Principle (DIP)

High-level modules do not depend on low-level modules. Both depend on abstractions through well-defined TypeScript interfaces and types.

Clean Code

Descriptive Names

Variables, functions and components have names that clearly express their purpose without needing additional comments.

Small Functions

Functions do one thing and do it well. Maximum 20 lines per function, with limited parameters and no hidden side effects.

Minimal Comments

Code is self-documenting. Comments only explain the "why", never the "what" or "how".

DRY, KISS, YAGNI

DRY
Don't Repeat Yourself

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

KISS
Keep It Simple, Stupid

Simplicity is the ultimate sophistication. We avoid unnecessary complexity in favor of clear solutions.

YAGNI
You Aren't Gonna Need It

We don't implement functionality until it's actually needed. We avoid over-engineering.