React

Automatic batching in React 18 helps avoid re-rendering

Remember the earlier versions of React that used to batch multiple state updates inside event handlers such as click or change to...

How to convert a React component to an image

Sometimes you want to give the users the ability to download a part of the web application as an image. In that...

React fragments: What and Why

React fragments were a feature released in React 16.2. They have been around for a while now but have been a relatively...

Why does React state need a new object/array?

If you have been using React for a while, you are familiar with how state update works. There are a lot of...

Avoiding race conditions and memory leaks in React useEffect

Let us take a look at an implementation of getting data from an API request and see if there is any possibility...

Using the useCallback React hook

The useCallback React hook is a useful hook that can help in optimizing the rendering performance of our functional React components. It...

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Chrome devtools: Using logpoints for logging messages directly

When it comes to debugging JavaScript in Chrome devtools, there are two different camps: the console.log fans and the debugger/breakpoint maximalist. I...

How to prevent npm install for unsupported Node.js versions

npm configurations allow us to do quite a lot of nifty things. One of them is to allow the project to set...

How to terminate a process on a port using the command line

Zombie processes are usually a pain to figure out. More often than not, I end up googling about how to terminate a...

Detecting dark mode preference using JavaScript

As dark themes have become popular across the web and across operating systems, we might want to check the user's operating system...

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Hi there! Want some more knowledge?

Think that the knowledge shared is helpful? You might want to give our mailing list a try. We'll send you 2-4 emails a month, right when new posts come out.