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Clean Architecture notes for developers

Master Clean Architecture with a curated set of 2 developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Clean Architecture

The Layers & the Dependency Rule

The Layers & the Dependency Rule The Goal Organize code so business logic (Entities, Use Cases) is independent of frameworks, databases, and UI — making the core easier to test and change without being tied to any specif…

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02 · Clean Architecture

Testability, Tradeoffs & Common Pitfalls

Testability, Tradeoffs & Common Pitfalls Why This Enables Fast Tests Because business logic only depends on abstractions, Use Cases can be unit-tested with in-memory fakes for the repository interface — no real database …

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TypeScriptgeneral

Interview Questions

TypeScript Interview Questions Comprehensive TypeScript interview questions covering type system, generics, utility types, and best practices: Fundamentals 1. What is TypeScript? TypeScript is a typed…

Mar 28, 2026

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TypeScriptgeneral

Advanced Types (Generics & Utility Types)

TypeScript Advanced Types Generics // Generic function function identity<T>(arg: T): T { return arg; } const num = identity<number>(42); // Explicit const str = identity('hello'); // Inferred // Gener…

Mar 3, 2026

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