Jonathan Neal jonathantneal

ShadowRoot QSA Part Polyfill

This polyfill lets you use CSS ::part() selectors in querySelector and querySelectorAll on ShadowRoot.

The script is 442 bytes minified, 300 bytes gzipped.

Usage

Include this polyfill somewhere in your document.

Focus Starting Point

Focus Starting Point lets you access and observe the focus starting point.

The library is 989 bytes, 554 bytes gzipped.

Example Usage

Overlay Taxonomy

This is a defined taxonomy for overlay things on the web. A taxonomy is a way of organizing things into groups and subgroups based on shared characteristics. These definitions intend to reflect concepts already defined in or strongly inferred from existing W3C specifications and proposals. They do not necessarily reflect what exactly an element, attribute, property, or method of the same name does on the web.

Term	Description
overlay	Content that is displayed in a distinct layer over other content.
modal	An overlay that is blocking, interrupting the user flow and preventing access to other content.
non-modal	An overlay that is non-blocking, allowing access to other content.
dialog	A modal overlay, usually containing an action or task to perform.

So You Think You Know Astro

Ahoy, me celestial companions of coding! It be me, your humble gentlenaut of fortune, Cosmo, at ye service.

( An’ perhaps to some snooty static site scallywags an Ex-Sailor of the Astro Expanse... )

So, y’ think ye know Astro, do ye? Aye, then consider this cosmic challenge from ye ol’ quainty matey, Cosmo.

I will asks my riddles. Ye will gives ye answers.

	// Define the KeyboardEvent.modifierKey getter as the platform modifier key
	KeyboardEvent.prototype.__defineGetter__(
	'modifierKey',
	KeyboardEvent.prototype.__lookupGetter__(
	// The modifier key is meta for Apple devices, otherwise control
	/^(MacIntel\|iPhone)$/.test(navigator.platform) ? 'metaKey' : 'ctrlKey'
	)
	)

	interface Iterator<T, TReturn = any, TNext = undefined> {
	next(): {
	done: boolean
	value: T
	}

	/** Returns an iterator of the elements with the given mapping function applied. */
	map<TT>(
	/** A mapping function to call on every element of the iterator. */
	callback: (value: T) => TT

	// @ts-check

	import * as fs from 'node:fs'

	/** Fetches JSON returns the result with narrow typing. */
	export let fetchJSON = /** @type {(input: RequestInfo \| URL, init?: RequestInit) => any} */ (
	async (/** @type {string} */ input, config = any) => {
	const response = await fetch(input, config)
	const responseJSON = await response.json()

	// @ts-check

	/** Creates a new Request. */
	export const create = /** @type {(input: RequestInfo \| URL, init?: RequestInit) => Request} */ (
	(input, config = any) => new Request(input, config)
	)

	/** Stringifies a Request into JSON. */
	export const stringify = /** @type {(request: Request) => Promise<StringifiedRequest>} */ (async (request) => {
	/** URL of the request. */

	/* These rules are ignored when ui-monospace is supported. */
	@font-face { font-family: ui-monospace; src:
	/* MacOS (El Capitan +) */
	local(Menlo-Regular),
	/* Windows (11 +) */
	local(CascadiaCode-Regular),
	/* Windows (Vista +) */
	local(Consolas),
	/* Android */
	local(RobotoMono-Regular),