A rather geeky/technical weblog, est. 2001, by Bramus
Meshspin.js is a simple and lightweight JavaScript library that lets you spin a 3D mesh object in your browser using SVG and JavaScript without dependencies. A default MeshSpin is defined as follows, but you can also define your own shapes and have it rotate by mouse movement. var mesh = new MeshSpin(); mesh.setup(‘wrapper’); mesh.run(); See …
A book on JavaScript by Axel Rauschmayer. This book makes JavaScript less challenging to learn for newcomers, by offering a modern view that is as consistent as possible. Covers all essential features of JavaScript, up to and including ES2022. You can read the entire contents online, or order PDF/EPUB/MOBI versions for $34 JavaScript for Impatient …
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If you don’t want to directly use the Web MIDI API, you can use WEBMIDI.js WEBMIDI.js makes it easy to interact with MIDI instruments directly from a web browser or from Node.js. It simplifies the control of physical or virtual MIDI instruments with user-friendly functions such as playNote(), sendPitchBend() or sendControlChange(). It also allows reacting …
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AnthumChris collected some JavaScript scripts to track the progress of fetch requests that download files/data. It works by leveraging the ReadableStream interface from the Streams API. A “simple” example is this: fetch('https://fetch-progress.anthum.com/30kbps/images/sunrise-baseline.jpg') .then(response => { if (!response.ok) { throw Error(response.status+' '+response.statusText) } if (!response.body) { throw Error('ReadableStream not yet supported in this browser.') } // …
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array.groupBy() and array.groupByToMap()
An ECMAScript Proposal that recently made it to Stage-3 is “array grouping”. It brings us array.groupBy() and array.groupByToMap() methods to easily group arrays.
No more hacking around with the inadequate JSON.parse() or bouncing data to a Web Worker in order to deep clone an object, as there’s now structuredClone() For the longest time, you had to resort to workarounds and libraries to create a deep copy of a JavaScript value. The Platform now ships with structuredClone(), a built-in …
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12 Days of Web is Stephanie Eckles‘s “advent” calendar. A year-end celebration of fundamental web technologies: HTML, CSS, and JavaScript. Three days in, and she has already covered Intersection Observer, <details> + <summary>, and CSS Custom Properties. Good stuff. 12 Days of Web → Related: Find more web advent calendars here.
Bundle Scanner identifies which npm libraries are used on any website. It downloads every Javascript file from a URL and searches through the files for code that matches one of the 35,000 most popular npm libraries. The scanning itself works in a pretty ingenious way: When a user requests to scan a website, Bundle Scanner …
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A bit of an older post, but still relevant: Tapas Adhikary goes over some HTML attributes one can set on an input[type=”file”], and uses of the File API: Simple file upload Multiple file uploads Know about file metadata Know about file accept property Manage file content Validate file size Show file upload progress How about …
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Floating UI is a low-level library for positioning “floating” elements like tooltips, popovers, dropdowns, menus and more. Floating UI exposes primitives which enable a floating element to be positioned next to a given reference element while appearing in view for the user as best as possible. Features include overflow prevention (or collision awareness), placement flipping, …
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