Hi everyone, is it very common when we start coding to create objects that needs others objects to work e.g. in a Car class that need a Person object to start the engine and drives ( starEngine and drive are hypothetical methods that needs a Person instance). So we can say that a Car needs a Person to work.https://medium.com/media/fc60e8d54ac0bebd703d00771d4446e4/hrefThe code above shows us that Jhon is driving our car, and only Jhon can do it! Because every Car object will create an instance of a Person named Jhon. But what if Mary wants to drive? How can we rewrite that code to let Mary drive our car?https://medium.com/media/c827bfd5dc2aafee4e36f31af205caad/hrefWe can pass a Person to our Car, making it work for any instance of Person, in other words: reusable.


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xcode,dependency-injection,swift,unit-testing