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iOS Build a Simple iPhone App with Swift Creating a Data Model Refactoring Into a Model

Samar Khanna
Samar Khanna
1,757 Points
Posted by Samar Khanna
Samar Khanna
1,757 Points

Why do we have to assign the let constant at all?

Why can't we just say

funFactLabel.text = FactBook.factArray[0]

instead of using the instance:

funFactLabel.text = factBook.factArray[0]
Traci McGrew
Traci McGrew
2,559 Points
Traci McGrew
Traci McGrew
2,559 Points 
//Doing the first snippet of code you wrote creates a new struct everytime
funFactLabel.text = FactBook.factArray[0]

//Instead, declare new instance of the struct FactBook once

     let factBook = FactBook()

//then keep accessing the same instance not a new one everytime
funFactLabel.text = factBook.factArray[0]

Watch the video "Refactoring Into a Model" from like 4:25 to 5:30 if you're still confused as to why.