Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Open the CarInfoBasicView file and update previews with the following previewLayout file."

A block of code is set as follows:

func save() { 
    let context = persistentContainer.viewContext
    if context.hasChanges {
        do {
            try context.save()
        } catch let error {
            print(error.localizedDescription)
        }
    }

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "We are moving to the Complete Order view. This view appears when you tap on the Complete Order button."

Tips or important notes

Appear like this.