A beginner-friendly React tutorial that walks you through creating a dropdown component by example. In this guide, you'll learn step by step how to build a dropdown in React. While HTML offers a built-in select element for similar functionality, React doesn't have such native primitives for dropdown components. First, we need a HTML button element…
Since React's release in 2013, various component types have emerged. Some are still essential to modern React applications, while others are mostly found in older projects (deprecated). This guide provides beginners with an overview of modern components and patterns, explaining which are still relevant and why some are no longer used. By the end…
There are multiple ways to fetch data in React from a remote API. Here we want to explore all the options available for data fetching in React that were introduced over the years and are still in use today. While some of them are newer and recommended, others are less recommended and should be avoided in most cases. Let's jump right in. We will…
State in web applications can have many forms. It can be local component state, global application state, browser state or shareable URL state . The latter is a special form of state that is stored in the URL which then can be shared with others or saved for later use. Once this URL is visited again, the application's state is restored from the…
React, with its addition of Server Components and Server Actions, is evolving into a full-stack framework. Once the most popular frontend framework, it has now successfully bridged the gap between frontend and backend to reign over both sides of the chasm. I'm writing this article because the following illustration has been on my mind. When the…
I have been working with React Server Components and Server Actions in Next.js for the last 6 months. While I am excited about Server Components and their ability to execute code on the server, I am not convinced (yet) by the story of data fetching in Client Components (without Server Actions). Since I have seen the question ("Can I fetch data with…
Here you will learn how to use a form button in React to trigger a server action in a Server Component without any form fields or form data. This can be useful if you want to trigger a server action with a button click, but don't want to use a Client Component to assign a click event handler. React Button in a Client Component We will start with a…
In this short tutorial, you will learn how to pass extra arguments to server actions in React forms. We will start with the following React form component that updates a post: In the above code snippet, the updatePost function is called when the form is submitted. The form action receives the raw form data as an argument and can extra the data…
Rounding errors are a common issue in JavaScript and other programming languages when working with floating-point numbers. You might have encountered the problem when adding two decimal numbers like 0.1 + 0.2 and expecting the result to be 0.3 . However, the result is not 0.3 but 0.30000000000000004 . In a financial application you do not…
In this short tutorial, you will learn about multiple ways to show a loading spinner in React forms when using actions with a pending state. You can use the loading state to indicate that the form is submitting and prevent users from submitting the form multiple times. We will start with the following React form component that sends a message: In…
