Node + Express + PostgreSQL is a powerful tech stack for backend applications to offer CRUD operations. It gives you everything to expose an API (Express routes), to add business logic (Express middleware and logic within Express routes), and to use real data with a database (PostgreSQL). It's perfect for establishing a PERN (PostgreSQL, Express…
Eventually every Node.js project running with Express.js as web application will need a database. Since most server applications are stateless, in order to scale them horizontally with multiple server instances, there is no way to persist data without another third-party (e.g. database). That's why it is fine to develop an initial application with…
The default setup for my JavaScript projects: Prettier + ESLint. Whereas Prettier is used to autoformat my code to enforce an opinionated code format, ESLint makes sure to keep my code style in a good shape. In this brief setup guide, I want to show you how to combine Prettier with ESLint without wasting any tear. If you haven't set up Prettier yet…
A brief step by step tutorial on how to install and use ESLint in VS Code (Visual Studio Code) . ESLint supports you and teams to follow a common code style in your project. It can be used in VS Code by installing it from the VS Code Marketplace. Once you have integrated it in VS Code, you can configure ESLint to enforce a code style in your…
A brief step by step tutorial on how to install and use Prettier in VS Code (Visual Studio Code) . Prettier is an opinionated code formatter which ensures one unified code format. It can be used in VS Code by installing it from the VS Code Marketplace. Once you have integrated it in VS Code, you can configure Prettier to format your files when…
A React tutorial about event bubbling and capturing. Most JavaScript developers may be already familiar with this topic, because it origins in JavaScript and its DOM API. However, in this article, I want to give some of guidance for event bubbling and capturing in React . An event handler in React can be used to listen to a specific event (e.g. on…
A neat custom React Hook that I used in some of my React freelance projects which checks if an element's content has overflow (here: vertical overflow): If you want to detect a horizontal overflow instead, you can exchange the hasOverflow assignment to the following: In a function component , the custom React hook can be used this way: The…
A short React tutorial by example for beginners about using a radio button in React. First of all, a radio button is just an HTML input field with the type of radio which can be rendered in React's JSX: What may be missing is an associated label to signal the user what value is changed with this radio button: In your browser, this radio button can…
When using React Router in React, one can use the Navigate component to navigate a user away from a page in case of a certain condition. For example, the following example does not render a list if there is no data, but redirects a user to the home page instead: In this case the redirect is well placed. However, if there is much logic happening…
A brief tutorial on how to generate an image (JPG or PNG) from a React component . Use case: Sometimes when you have a React project, you want to give users the ability to download an area of your application as image. For example, when you display charts based on data, a user should be able to export the chart as image. In this React tutorial, I…
