A rather geeky/technical weblog, est. 2001, by Bramus
The folks at Percona have benchmarked TCP/IP vs. Unix Connections to a local MySQL server. When connecting to a local MySQL instance, you have two commonly used methods: use TCP/IP protocol to connect to local address – localhost or 127.0.0.1 – or use Unix Domain Socket. If you have a choice (if your application supports …
Continue reading “Need to Connect to a Local MySQL Server? Use Unix Domain Socket!”
To use Tailwind – or any prebuilt CSS library/framework for that matter – in a React app you can simply import its generated CSS file and use the classes it exposes: import ‘../tailwind.generated.css’; // … const Alert = ({ title = '', message }) => ( <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded relative" …
Continue reading “Use Tailwind classes within any CSS-in-JS library with Twin”
React.memo()
I know I’ve posted a similar article before but this is a pitfall I commonly see and therefore it can’t be repeated enough. React internally already optimizes the performance quite a bit without having to explicitly optimize for performance. React.memo can help you to optimize the number of renders of your React components even further. …
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The Facebook Engineering Team on how they’ve built the new Facebook.com – a version which I’ve been able to try for nearly two months by now. Throughout the process, we anchored our work around two technical mantras: As little as possible, as early as possible. We should deliver only the resources we need, and we …
Continue reading “Rebuilding our tech stack for the new Facebook.com”
Photo by Steve Johnson on Unsplash A map is one of the most frequently used data structures in daily programming. It keeps key-value pairs that can easily be accessed by their keys. In JavaScript, it is quite convenient to just use a plain object for that purpose. But there is a built-in data structure in …
Continue reading “Stop Using Objects as Hash Maps in JavaScript”
An article that’s been making rounds on Twitter today is Second-guessing the modern web: There is a sweet spot of React: in moderately interactive interfaces. Complex forms that require immediate feedback, UIs that need to move around and react instantly. That’s where it excels. But there’s a lot on either side of that sweet spot. …
It’s impossible to work with docker containers without docker images. In this post I want to talk about what makes docker images possible: the overlay filesystems. Interesting to know how things work behind the scenes. How are docker images built? A look into the Linux overlay file-systems and the OCI specification →
Great find by Stefan Judis: Today I learned that the content property supports a way to define alternative text for generated content. You can specify the alternative content after a /: .new::before { content: url(./img/star.png) / "New!"; } Here’s how that works with screen readers: .new-item::before { /* "black star" and element content is read …
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KeyCastr is an open-source keystroke visualizer. Handy to use while screencasting/livestreaming/teaching. Installation per Homewbrew Cask: brew cask install keycastr KeyCastr →
Deno is a brand new JavaScript runtime, similar to Node.js. Use it to develop secure server-side apps with built-in TypeScript support, ES modules, and promise-based APIs. 📝 If you’re looking for a more extensive write-up on Deno, check Deno 1.0: What you need to know