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);

복잡도의 상승

var myEngine = new Engine();
var myTires = new Tires();
var depA = new dependency();
var depB = new dependency();
var depZ = new dependency();
var myCar = new Car(myEngine, myTires, depA, depB, depZ);

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