A rather geeky/technical weblog, est. 2001, by Bramus
I’m a huge mapping nerd, so I’m a sucker for the Maps JavaScript API WebGL beta which was announced at Google I/O back in May: Introduced are three new features: WebGL Overlay View lets you add custom 2D and 3D graphics and animated content to your maps. Tilt and heading can now be adjusted programmatically, …
Percollate is a command-line tool that turns web pages into beautifully formatted PDF, EPUB, or HTML files. Installation per NPM npm install -g percollate Once installed you can, for example, run this: percollate epub https://brm.us/at-layer -o css-at-layer.epub Percollate will automatically extract the main content (powered by Mozilla’s Readability.js), perform some enhancements on it (such as …
The Visual Studio Code extension named “CodeSwing” just blew my socks off. CodeSwing is an interactive coding playground for VS Code, that allows you to build/explore/learn rich web applications (“swings”). It’s like having the magic of a traditional web playground (e.g. CodePen, JSFiddle), but in Visual Studio Code! Using the Command Palette you can create …
The folks from builder.io set out to create a way to prevent Third-Party Scripts from blocking the main thread. The result is Partytown, which runs Third-Party Scripts Within a Web Worker. Partytown is able to sandbox and isolate third-party scripts within a web worker and allow, or deny, access to main thread APIs. This includes …
Continue reading “Partytown: Run Third-Party Scripts off the Main Thread in a Web Worker”
A new animation library, built on the Web Animations API for the smallest filesize and the fastest performance. import { animate } from “motion” const boxes = document.querySelectorAll(".box"); animate(boxes, { backgroundColor: "red" }); Motion One → Be sure to also read the “Improvements over WAAPI” page.
Over at Codecourse you can follow a free video course covering the aforementioned Alpine.js. Alpine.js is a refreshingly minimal JavaScript framework that gives you the reactive nature of Vue and React, but with much more simplicity. This course will get you up to speed on how to use it, with plenty of practical examples along …
perfect-freehand — Draw perfect pressure-sensitive freehand lines
What a wonderful package by Steve Ruiz: Draw perfect pressure-sensitive freehand lines The results are stunning imo. In the recording above you can see me write hello using the trackpad on my Mac. Yep, that’s without a stylus! Embedded below you can find a Vanilla JS demo, inspired upon the code from the React code …
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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 …
