JavaScript

Svelte is already quite lightweight and fast, but Svelte 5 still overs big improvements in fine-grained reactivity, meaning re-rendering as absolutely little as possible.

Native support for decorators is inevitable! It simplifies augmenting class methods, which can help with things like logging, memoization, debouncing, and dependency injection.

While it’s a bit more common to *write* to the clipboard, JavaScript can also read from it. Plain text is pretty simple, while multimedia content is a bit more complex.

JavaScript Frameworks generally do a lot of DOM handling for you, but doing it yourself can be the most performant option, and there are quite a few best practices.

Svelte 5 introduces significant improvements in reactivity, state management, and prop handling, maintaining its user-friendly Developer Experience (DX).

Philip Walton for Google responded to our question We’ve Got Container Queries Now, But Are We Actually Using Them? There are a variety of reasons why usage of them seems to be low, but certainly developers worried about browser support is still a factor. The biggest quoted concern is Safari 15, which is entirely reasonable. […]

Polyfill.io recently served malicious code, redirecting users to inappropriate sites. Subresource Integrity (SRI) can help prevent such issues by verifying script integrity.

I found this essay Primitive Obsession by Andrew Cairns interesting. The big example in it is this: Here the User function takes two string params, string being a primitive type, and here, quite easy to screw up by passing them in the wrong order and/or not pre-validating the values. If you agree, there are a […]

Sets in JavaScript are quite useful as they are like an array, but can only contain one of a specific item. So you can unique-ify an array easily, and even willy-nilly add stuff to it and not worry about duplicates: Now they are even more useful with recently universally available methods, as Brian Smith summarizes:

Which one makes more sense to use, big and slow or small and fast? Especially with the same appearance and functionality, the youtube-lite component is a no-brainer.