What are Closures? In technical jargon, Closures are self-contained blocks of functionality that can be passed around and used in your code. However, speaking in laymen's terms, Closures are bodies of function without syntax — func <func_name>(). Example: func display(message: String) { print(message) } The above function can be re-written as a closure…

Error 1: Generic parameter ‘T’ could not be inferred While writing a generic function in Swift with a completion handler that returns a data of generic type <T>, I encountered an error while calling the generic function from my view model class. Generic parameter ‘T’ could not be inferred Generic function: func fetchList<T: Decodable>(completionHandler: @escaping CompletionHandler<T>) Calling function:

Dependency injection is better understood with the help of an example. So let’s jump directly into it. In this example, Object A depends on Object B and/or Object C. Therefore, Obj A creates instances of Obj B and/or Obj C inside one of its functions. …

Pictorial representations of MVC and MVVM: