One of the principles of SOLID is the dependency inversion. There are many resources with a dependency inversion detailed description such as books and the articles. And most of candidates at a job interview successfully answer to the question: “What is the dependency inversion?”. …

No need to explain why necessity of a new programming language is come. One of many reasons is redundancy of existing programming languages. (Exactly-once statement of Python, assignment as expression almost every single statement in Kotlin etc.) Another reason is legacy interface concept of C++, and outdated snake_case notation of…

Surely, every developer who needed to program the network layer of the application solved the problem of passing request parameters. In most cases, this is a simple task that can be achieved using standard tools provided by the native framework or programming language. But if we consider the situation in…

At least in the last decade, the number of applications that require access to the Internet has grown exponentially. Moreover, for most projects, only the execution of REST requests and the loading of images are required. In this terms, some sort of network manager is needed to download data from…

Some time ago, an article was published on the topic of storing user data. This article presented a solution that is suitable for storing general data such as notification settings, mailing list, age, name, etc. But if you need to store security essential or private data, such as an authorization…

It is not possible to imagine at least one application that does not require saving user settings. Obviously, there are many solutions for these purposes, and each of them solves one, specific problem. Today we will talk about the UserDefaults storage and its usage. Implementation After researching existing solutions on the…