📝Dependency injection

Various ways to pass/forward/inject dependencies:

• Passing explicit arguments

• Passing dependencies to object constructors

• Dependency injection frameworks

• React context or similar

• Monads

• Closures (kind of?)

• § Effect system

• Co-effects

• Global variables to pass rarely-used dependencies

  • Dynamic scoping is a better model for global variables—Dynamic scoping as a way to inject dependencies

• Package managers are dependency injection mechanisms