EmNudge

export const ONE_SECOND = 1000;
export const ONE_MINUTE = ONE_SECOND * 60;

/**
 * keeps previous work until duration
 * @example
 * const getFile = getCachedWork(async () => {
 *   const file = await readFile()
 *   return await transform(file)
 * }, ONE_MINUTE)

EmNudge

import { useState } from 'react';

type GlobalState<T> = { value: T };

const setStateMap = new Map<GlobalState<any>, Set<Function>>();

export function useGlobalState<T>(stateObj: GlobalState<T>) {
  const setStateFuncs = setStateMap.get(stateObj) ?? new Set();
  setStateMap.set(stateObj, setStateFuncs);

EmNudge

const listeners = new Set();
const addSubscriber = (res) => {
  res.writeHead(200, {
    "Content-Type": "text/event-stream",
    Connection: "keep-alive",
    "Cache-Control": "no-cache",
  });

  listeners.add(res);
};

EmNudge

import { createServer } from "node:http";

const sleep = (ms) => new Promise((res) => setTimeout(res, ms));

const suspend = (placeholder, promise) => {
  const id = "stream-" + Math.random().toString(32).slice(2);
  const inserterTag = `<script 
    src="data:text/javascript," 
    onload="window[&quot;${id}&quot;].replaceWith(this.previousElementSibling), this.remove()"
  ></script>`;

EmNudge

function tmp() {
	local rand_name="r$(head /dev/urandom | LC_ALL=C tr -dc a-z0-9 | head -c 6)"
	local temp_folder="/tmp/trash-dirs/${1:+$1-}$rand_name"
	mkdir -p "$temp_folder" && cd "$temp_folder" || return 1
}

# usage:
tmp # make a random directory in /tmp/trash-dirs/ and cd into it
tmp my-project # prefix dir with "my-project-"

EmNudge

// https://www.ecma-international.org/ecma-262/11.0/index.html#sec-toprimitive

const isCallable = (obj, prop) => typeof obj[prop] === 'function';

const isPrimitive = (val) =>
  val === null || !['object', 'function'].includes(typeof val);

// return primitive or error
function toPrimitive(obj) {
  if (isPrimitive(obj)) return obj;

EmNudge

/** @param {string} text */
const parenToIndented = (text) => {
  let num = 0;
  return text.replace(/[,)(]/g, ([m]) => {
    if (m === ")") {
      num--;
      return "";
    }
    
    if (m === "(") num++;

EmNudge

// for use in quickly testing out webcam on browser

document.body.style.margin = '0';

const constraints = { 
    audio: false, 
    video: { width: 1280, height: 720 } 
};

const videoEl = document.createElement('video');

EmNudge

import { Env } from './index';

type RouteFunc = (request: Request, env: Env, groups: Record<string, string>) => Promise<Response>;
type RouteGuard = { pattern: URLPattern, func: RouteFunc };
type HttpMethod = 'GET' | 'POST' | 'PUT' | 'DELETE' | 'OPTIONS';

export class Router {
    guards: Map<HttpMethod, RouteGuard[]> = new Map();
    enabledCors = false;

EmNudge

/* container data, change as needed */
.staggered {
  --max-depth: 20;
  --max-delay: 500ms;
}

/* requires an --index variable on each */
.staggered > * {
  animation: slide-in .5s forwards;
  display: block;