Web Development

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...

Flatten Arrays in Vanilla JavaScript with flat() and flatMap()

ES2019 introduced two methods on the array prototype that would make life so much simpler for developers. These are flat() and flatmap()...

Using GroupBy on an array of objects in JavaScript

Array grouping is a fairly common operation in any project. Until recently, we had to resort to either writing our own implementation...

Node.js introduces node: protocol imports

Node.js recently introduced a node: protocol for built-in modules. Built-in node modules can now be imported by prefixing the node: protocol prefix.

JSON Modules in JavaScript

ES Modules were introduced in ES2015. The import and export keywords by default are only applicable to JavaScript code. But there is...

How to check if a string contains emojis in JavaScript?

If you have user-generated content in your web application, chances are you have to deal with strings containing emojis. Since emojis are...

Recent Articles

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...

JavaScript: Split string and keep the separators

String.prototype.split() is a valuable method to split strings based on a delimiter. There often comes a scenario when we want to split...

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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.