
Engineering
Dependency Injection Patterns in TypeScript Applications
Dependency injection in TypeScript with constructor injection, factory functions, DI containers and module composition — testable, without framework lock-in.
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Dependency injection in TypeScript with constructor injection, factory functions, DI containers and module composition — testable, without framework lock-in.

Dependency injection doesn't require a framework or decorators — here's how to apply it in TypeScript with simple patterns that make code testable and flexible.