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@custom-variant data-horizontal (&[data-orientation="horizontal"]);
@custom-variant data-vertical (&[data-orientation="vertical"]);

@custom-variant data-open (&[data-state="open"]);
@custom-variant data-closed (&[data-state="closed"]);
@custom-variant data-active (&[data-state="active"]);
@custom-variant data-inactive (&[data-state="inactive"]);
@custom-variant data-checked (&[data-state="checked"]);
@custom-variant data-unchecked (&[data-state="unchecked"]);

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If you're working with Files or Blob objects, you can't really do anything with them besides read their size and type unless you use one of its methods (e.g. bytes, arrayBuffer, slice, stream, text), all of which (besides stream) return a Promise.

For me, in React, if I'm expected to handle a Promise, my mind gravitates to either React Query or SWR. Something like this:

import { useQuery } from "@tanstack/react-query";

const Component = ({ file }: { file: File }) => {
  const { data: arrayBuffer } = useQuery({
    queryKey: ["Component", file],

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const data = new Uint8Array([1,0,1,0])
const blob = new Blob([data])
const newData = await blob.bytes() // [ 1, 0, 1, 0 ]
newData === data // false
data[1] = 1
await blob.bytes() // Uint8Array(4) [ 1, 0, 1, 0 ]

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import { useSyncExternalStore } from "react";

enum ReadyState {
  EMPTY,
  LOADING,
  DONE,
}

const useFileReader = () => {
  const fileReader = new FileReader();

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pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libint53.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libcore.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libsigs.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libccall.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libaddfunction.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libgetvalue.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libmath.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libpath.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libstrings.js
pre-processing JS library: /emsdk/upstream/emscripten/src/lib/libhtml5.js

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I needed to add a border to the arrow in the Popover component from radix-ui.

The HTML that is generated looks something like this:

<svg style="display: block;" width="10" height="5" viewBox="0 0 30 10" preserveAspectRatio="none">
  <polygon points="0,0 30,0 15,10"></polygon>
</svg>

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List of large codebases using Radix Primitives with free licenses. Mostly taken from Case Studies. Leaving here for inspiration later. Let me know if you know of any others.

• nodejs/nodejs.org (MIT)
  • Tooltip
  • Select
  • Modal
  • Separator
  • Tabs
• [Language Dropdown](https://github.com/nodejs/nodejs.org/blob/master/packages/ui-components/src/Common

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@import "tailwindcss";

@theme inline {
  --color-contrast-1: light-dark(var(--color-gray-50), var(--color-gray-950)); /* background */
  --color-contrast-2: light-dark(var(--color-gray-100), var(--color-gray-900)); /* subtle */
  --color-contrast-3: light-dark(var(--color-gray-200), var(--color-gray-800)); /* muted */
  --color-contrast-4: light-dark(var(--color-gray-300), var(--color-gray-700));
  --color-contrast-5: light-dark(var(--color-gray-400), var(--color-gray-600)); /* subtle foreground */
  --color-contrast-6: light-dark(var(--color-gray-500), var(--color-gray-500)); 
  --color-contrast-7: light-dark(var(--color-gray-600), var(--color-gray-400)); /* muted foreground */

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Suppose you are using lovasoa/dezoomify-rs to extract an image.

Easiest way would be to use the dezoomify extension (lovasoa/dezoomify-extension), zooming in, clicking on the extension icon, which will pop up the dezoomify website with the url pre-filled.

Alternatively, inspect element, network tab, select XHR or Fetch/XHR and look for a JSON fetch request to a info.json of something like this:

{
  "@context": "http://iiif.io/api/image/2/context.json",
  "@id": "https://numerabilis.u-paris.fr/iiif/2/bibnum:90146x1805x09:0097",

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import { OPS, type PDFPageProxy, type ImageKind } from "pdfjs-dist/legacy/build/pdf.mjs";

// https://github.com/mozilla/pdf.js/blob/master/src/core/image.js#L698
type ImageObject = {
  width: number;
  height: number;
  interpolate: undefined;
  kind: (typeof ImageKind)[keyof typeof ImageKind];
  data: Uint8Array | Uint8ClampedArray;
  dataLen: number;