javascript

How to sort a Set in JavaScript

ES6 introduced the set data structure in JavaScript. But sets are not ordered abstract data structures. So there is no .sort() property...

Getting the value of an input element as a number without parseInt

Every once in a while, you come across something and you think, how did I not know this earlier? valueAsNumber is that thing...

How to write comments in React (JSX)?

I was recently trying to comment out some logic inside my JSX to add context about what a potentially complex logic, but...

How to write more readable JavaScript conditionals

One of the practices of clean code is to make it more readable. And a fairly common use case in code bases...

Deep copying in JavaScript using structuredClone

For as long as anyone can remember, deep copying in JavaScript was not a built-in feature and we had to resort to...

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...

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.