React Archives » Andreas Reiterer

Why is my useEffect Hook executed in an endless loop?

Did you already try the `useEffect` hook, maybe to fetch data on the first mount of your component? How did it work out for you?

How to Load Data from a REST API with React Hooks

With this week’s release of React 16.8, Hooks were finally released into the wild. They allow us doing a lot of stuff that wasn’t possible until now. For example, loading data into the state of a functional component. But let’s have a closer look.

How to Call a REST API from a React Component

At some point in your journey of learning React, you’ll get to the point where you want a component to consume an API. Or maybe you want to connect your app to a REST backend, you name it. After all, you want that flippin’ data from that server in your app.

But how do you get the data from an API or your backend into your component?

How to set up VSCode to Debug React Apps with Chrome

How do you debug your JavaScript? I’m pretty sure that most of you would answer anything like console.log, browser dev tools or – if it’s a React app – React Dev Tools. Yep, me too 🙂

How to fix BrowserRouter for React Apps on Apache

While learning React, most people develop and test their apps locally. I mean … they’re just demo apps for learning purposes right? Nobody wants to see stuff like that, so why even think of deploying the apps somewhere?

But then comes the day where you try to deploy a React App to a web server, so you could show it to the people out there: “Look! I made this!”. And that’s how it was for me too. Continue reading How to fix BrowserRouter for React Apps on Apache

Is there a way to host a React app without a NodeJS Server?

So you built your first React app and now it’s time to get it out in the world. But where do you host a React app?

Until now, you probably ran your app with npm start which spins up a development server for you to debug and test your app. But that won’t work in production. Continue reading Is there a way to host a React app without a NodeJS Server?

How to dynamically add CSS Classes to React Elements using State

If you’re just starting out with React, you might soon get to the point where you want to dynamically change the styling of some React Elements – e.g. at the click of a button. In this post we have a closer look at this concept. Continue reading How to dynamically add CSS Classes to React Elements using State

3 Quick Wins to Test Your Presentational React Components with Jest

Did you ever ask yourself, if it makes sense to test presentational components, or if it’s just too time consuming? Good news, you’re not alone! That’s why I put together three ways to create useful Jest tests for your presentational components without spending too much time.

Continue reading 3 Quick Wins to Test Your Presentational React Components with Jest

How and Why to Bind a Callback Function in React Components

This might sound familiar to you: You run your React app after you made some changes to test your new functionality and get an error message like this: “this.setState’ is not a function“. It’s probably because you forgot to bind a callback function before passing it down a prop. Today you’ll learn why you need to bind, and how to bind a callback function in React.

Continue reading How and Why to Bind a Callback Function in React Components

5 UI Libraries to Use With React

If you’re a developer who – like me – is not a good designer or a CSS pro, you might know how troublesome it can be to put together the design for your React app. You spend a lot of time tinkering with the styles, but in the end, it just doesn’t look quite nice.

Continue reading 5 UI Libraries to Use With React