Throughout this series, we’ve created some schemas and models for documents. We’ve also established ways to define relationships between them. We sometimes find ourselves needing many different properties in our documents. They sometimes overlap each other, and we might want to avoid duplicating the data in the database. Also, we might want to avoid two-way […]
The SOLID principles were defined quite some time ago and are still relatable. Their goal is to make our software easier to understand, read, and extend. We accredit this concept to Robert C. Martin from his paper from the year 2000. The actual SOLID acronym was defined later, though. In this article, we go through all […]
When implementing TypeScript in our projects, we strive to write the best typings we can. We might often feel like using the any type defeats the purpose of TypeScript, and rightfully so. There are also some other types worth knowing, and we might find them useful when trying not to use any, like the unknown. In this article, we […]
The Observer pattern is common among various native JavaScript features and many libraries. The above is just one of the reasons to look into it more. In this article, we learn the principles of the Observer pattern. We also add some TypeScript typings to it, to make it more bug-proof. The core principle of the […]
Cypress has proven to be an appropriate tool for writing E2E tests. In the previous parts of this series, we’ve gone through its basics. That’s a proper moment to take a look at a useful addition: the Gherkin syntax. In this article, we look into its principles and how to make a Cypress Cucumber integration. […]
In the previous part of this series, we’ve learned the basics of the Cypress framework. Although the above knowledge is enough to write our first tests, there is much more to explore. In this article, we dive a bit deeper into the mechanisms of Cypress. By doing so, we can avoid some troubles along the […]
So far, we’ve covered quite a lot of different types of tests. Some of them were unit tests or integration tests, where we tested a specific part of our implementation or components working together. In this article, we look into End-to-End testing and perform it using the Cypress framework. The principles of the End to End (E2E) testing The […]
When we are cold, we put on a shirt. If that’s not enough, we put a coat on top. Decorators work similarly. In this article, we discuss the principles of the decorator design pattern and talk about their implementation in TypeScript. We also briefly mention the JavaScript implementation of decorators using Babel. The basics of […]
The hooks are an exciting addition to React and undoubtedly one that helps us to separate the logic from the template. Doing so makes the above logic more testable. Unfortunately, testing hooks does not prove to be that straightforward. In this article, we look into how we can deal with it using react-hooks-testing-library. Identifying the tricky […]
The essential thing when approaching design patterns is to utilize them in a way that improves our codebase. The above means that we sometimes can bend them to fit our needs. The Facade design pattern is commonly associated with object-oriented programming. That doesn’t change the fact that we can take its fundamentals and apply them […]