MVC

M - model
- we can simply think models as our data layer. basically structure of our data.
- for example, lets have a user model. it has things like first name, last name, email, phone number etc.
- we can create model a either using struct or class.
V - view
- things that we can see on our device.
- for an example text fields, buttons and labels.
C - controller
- controller work as the middle man of your view and model
- when view trigger particular event, controller listen to those events and got to the model and retrieve any data if needed.
- controller is the one in charge that make sure things are connected end to end.
in UIkit they have combine view and controller and create the ViewController