GaramX

• Code without DI - drawbacks
• DI as a design pattern
• DI as a framework

DI is a coding pattern in which a class receives its dependencies from external sources rather then creating them itself.

var engine = new Engine();
var tires = new Tires();
var car = new Car(engine, tires);
 
var engine = new Engine(parameter);
var tires = new Tires();
var car = new Car(engine, tires);