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Achieving Balance in Angular and TypeScript with the Stable Abstractions Principle

Building scalable and maintainable Angular applications requires a careful balance between stability and flexibility. The Stable Abstractions Principle (SAP) provides a crucial guideline for structuring modules and dependencies.

Vítor Azevedo
JavaScript in Plain English

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“A package should be as abstract as it is stable.” — Robert C. Martin

This principle ensures that the most stable parts of an application remain adaptable through abstraction, preventing them from becoming rigid bottlenecks. Conversely, less stable, frequently changing modules can remain more concrete.

In this article, we’ll explore how SAP applies to Angular and TypeScript, breaking down its practical benefits, challenges, and real-world implementation. By using interfaces, dependency injection, and modular design, we can create Angular applications that are resilient, testable, and easy to evolve over time.

Why SAP Matters in Angular Development

Balance Between Stability and Abstractness

  • Stable modules (widely depended upon) should be abstract so they…

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