A rather geeky/technical weblog, est. 2001, by Bramus
es-module-shims
JavaScript Import Maps – which I wrote about earlier here — are a great addition to the web. Unfortunately they’re only supported in Chromium 89+. Thankfully there’s a polyfill available: es-module-shims. As long as your browser has baseline ES Module Support (Chrome 61+, Firefox 60+, Safari 10.1+, and Edge 17+) the polyfill will work. To …
Continue reading “Support Import Maps in any browser with es-module-shims“
document.body
Very good performance deep dive on why you shouldn’t attach tooltips to document.body, but to a div that’s a direct child of the <body>. Tooltips in our app were taking >80ms. And during this time, the main thread was blocked, you couldn’t interact with anything. The main reason for the slowness of Tooltip was “Recalculate …
Great post by George Francis, in which he leverages the Voronoi tessellation to generate aesthetically pleasing random patterns. When composing generative patterns, placing objects on a canvas purely at random can feel chaotic, while aligning them to a traditional grid can feel rigid/predictable. While both chaos and exacting precision can both be beautiful qualities in …
Continue reading “Crafting Organic Patterns With Voronoi Tessellations”
Mid-August the WICG published a (unofficial) specification for a Native Eye Dropper — a tool you can use to get the color from the pixel that’s underneath the cursor — on the web. Let’s take a look … Usage The proposal is pretty straightforward: This API enables authors to use a browser supplied eyedropper in …
Continue reading “Pick Colors from websites your entire screen with the JavaScript EyeDropper API”
useUnmountSignal() — A React Hook to cancel promises when a component is unmounted
A React Hook that wraps around the almighty AbortController. It will automatically call abort() on the created AbortSignal instance when the component unmounts. import useUnmountSignal from 'use-unmount-signal'; function Example() { const unmountSignal = useUnmountSignal(); return ( <button onClick={() => fetch('https://ping.example.com', { signal: unmountSignal }) }> Ping </button> ); } Installation per NPM: npm i use-unmount-signal …
Jonathan Neal shared this little snippet on Twitter: Execute JavaScript modules like: bash ./command.js 1. Add the funky header.2. Optional: Omit the extension to not write `.js`.3. Optional: `chmod +x command` to not write `bash `.https://t.co/rhlPg2XPRJ pic.twitter.com/nbAvTFtt0w — Jonathan Neal (@jon_neal) July 25, 2021 Here’s the code: “:” //#;exec /usr/bin/env node –input-type=module – “$@” < …
In a conversation between Mathias Bynens and Ingvar Stepanyan, an idea popped up: what if a hostname — such as www.bram.us — would be valid JavaScript? Using a JavaScript Proxy, that’s perfect possible. My favourite is hostnames being valid (and working!) JavaScript. — Ingvar Stepanyan (@RReverser) June 12, 2019 Building further upon that is proxy-www, …
Continue reading “JavaScript: Hostnames as self-executing fetches”
petite-vue — A 5.5kb subset of Vue optimized for Progressive Enhancement
Continue reading “petite-vue — A 5.5kb subset of Vue optimized for Progressive Enhancement”
Continue reading “Convert a String representation of a JavaScript Object to an Object”