olemus
programmeerimismeetod, millega objektile antakse mujalt neid objekte, millest ta sõltub, nende loomise asemel
a programming technique whereby an object receives other objects it depends on, called dependencies, rather than creating them itself

ülevaateid
https://www.techtarget.com/searchapparchitecture/definition/dependency-injection

https://en.wikipedia.org/wiki/Dependency_injection

http://martinfowler.com/articles/injection.html

http://tutorials.jenkov.com/dependency-injection/index.html

https://www.smashingmagazine.com/2020/12/practical-introduction-dependency-injection/