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iOS Build a Weather App with Swift (Retired) Data Modeling With Structures Setting Icon Images

Posted by Unsubscribed User
Unsubscribed User
15,508 Points

Don't you have to place functions before the init() method?

I'm curious about this and I'd love more information. At least during this test project, we're using functions that are created after the init() method within the init() method.

Given that the compiler reads our programs line by line, when the compiler reaches icon = weatherIconFromString(iconString), it is now referencing a function that has yet to be created, so therefore it wouldn't be able to carry out this process, right? Yet it does. Unless, of course, the init() method gets read last despite it being written before any of the functions.

Now if the init() method does get read last or is a special kind of method that gets executed when necessary, does this apply to any other methods?

1 Answer

Bram Grooten
Bram Grooten
2,415 Points
Bram Grooten
Bram Grooten
2,415 Points

It doesn't matter in what order you define you functions. Whenever you call a function, the compiler searches through the file for the definition.

(maybe the compiler even searches through the whole project, because we create an instance of our Current struct with it's initializer method in another file, ViewController.swift)