In this tutorial, I am going to show you how to start using BDD and will use a Pokémon Pokédex search feature as an example. BDD means Behavior-driven Development and it’s a refinement of existing TDD processes. It considers the feature behavior ahead of the development and the test processes. A system can have many behaviors, which are basically how a feature operates input, process and output.
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When dealing with heavy workload functionalities that can have a big impact on web application performance, you may face the need of running it asynchronously (scheduled or not). These asynchronous background tasks can not only drastically improve the scalability of the application by moving those highly consuming operations to the background, but also improve the functionality usability. Once spread on different components, each with its own responsibility, your code can even look cleaner, more isolated and can be easier to maintain.
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Hello developer, how are you? Has anyone asked how your day has been today? To be a proficient software engineer, we find ourselves in an ocean of skills that are required for the job: each company has its tech stack, its way of working and its culture. Which skills should you focus on? Which ones should you have?
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As a Q.A. analyst, I have learned that the integration between the backend API and the frontend can be difficult to test and somewhat overlooked since unit tests and end-to-end tests are more common. With this approach you’ll have not only a broader understanding of the solution compared to unit tests, but also an increase in test speed and stability.
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Originally posted on dev.to
In this article, I’ll focus on showing how to add, edit and remove items in an array causing mutation and non-mutation ways.
One thing we need to keep in mind when writing code avoiding mutation is to return a new reference to the data after the update.
It’s a common approach when working with functional programming and if you want to understand some concepts of functional programming I recommend you read this article I wrote some time ago.
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There has been a lot of hype around the functional programming paradigm for some time and there are a lot of great books and articles about it on the internet, but it’s not so easy to find real examples with its application. So have I decided to create a game trying to follow its concepts using Javascript, which is the most popular programming language today. In this post, I will share some of this experience and tell you if it was worth it.
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Atomic Design is a very widespread topic nowadays within the front-end community, but while looking at several projects, I realized that there is still a lot of personal opinion on its implementation, and here I list some points that caught my attention throughout the years.
This article is not a tutorial on how to create your applications but it is intended to share my interpretation on how to best use this amazing methodology. Continue Reading
The Guide to app architecture suggests using ViewModel + Repository with LiveData in order to implement the data flow from Repository to ViewModel. If you use this approach or anything similar, there’s a high chance you could be leaking ViewModel. To help you understand and fix this issue, this article will briefly explain what a memory leak is, some of its implications, what happens when a ViewModel is leaked, why it happens and how to fix it for good.
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Recently I was given the opportunity to work in a React Native project, as a developer, most of my experience was with React, so I was thrilled with expanding my knowledge in this area.
As I started studying the platform, I got really interested in how to make animations using React Native, and in this blogpost, I am going to share my experience, and create a guide for beginners on how to start animating your React Native apps. In this guide, we are going to create a Burger Button that when activated spins and turns into an X button. For this, introductory knowledge of React Native will be required.
To follow the code, use the instructions in Getting Started with React Native, and then we can start our guide.
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Let’s discuss a structure to start new projects or when you need to scale large projects.
We will use React Native as a basis for this architecture, but the concepts can be leveraged in projects using other frameworks.
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Matheus FernandesPosted on 
