Interview Q&A / Object-Oriented Programming

1. What does an IoC container do, and when is it worth using?

   It creates objects, works out their dependencies and injects them for you, often also controlling their lifetime. It saves manual wiring in large applications, but is unnecessary in small ones.

   IntermediateQuick answer1 min read
2. What is the difference between Dependency Inversion, Dependency Injection and Inversion of Control?

   DIP is a design rule: depend on abstractions. DI is a technique: pass dependencies in from outside. IoC is the wider idea that a framework or caller controls the flow instead of your code.

   IntermediateQuick answer1 min read