Tim Kevin Oxley timoxley

For facebookarchive/react-360#255

In this example I expected the event handlers from the "middle" box to never fire, and the events for the "behind" box to fire when cursor hovers over it, regardless of whether the cursor is also over the "middle" box. See the console to see a log of the events occurring.

todot.js

Convert Algorithms on Graphs graph format into dot format

Usage

cat input.txt | node todot.js

JS Pop Quiz: How well do you know your functions?

Given an Array of Functions fns, what argument(s) can you pass to fns.forEach such that each function in fns will execute, in order, without creating any anonymous (or named) functions or invoking the Function constructor?

Conditions

Do not use the function keyword, or arrow functions () => .
Do not invoke the Function constructor.
Do not use method definitions.
Function#bind & friends on the Function.prototype are ok.

	const Emitter = require('events')
	const emitter = new Emitter()

	// Currently, (Node v14.12.0) this just prints 'iterating', waits a moment, then silently exits 0.
	// But adding at least one event triggers the full flow of: iterating, caught, finally, rejected
	// thinking maybe throw() should call errorHandler?
	;(async () => {
	const it = Emitter.on(emitter, 'test')
	setTimeout(() => {
	// emitter.emit('test') // uncomment to trigger full error flow

	export function todoMachine ({ contextKey, task, ...opts }) {
	return {
	...opts,
	initial: 'run',
	states: {
	run: {
	invoke: {
	src: (ctx, event) => (fn) => {
	const itemDone = (key) => (data) => {
	fn({ type: 'itemDone', data: { key, data } })

	// Requires:
	// JAZZ Plugin: https://jazz-soft.net/download/Jazz-Plugin/
	// JAZZ-Midi Chrome Extension: https://chrome.google.com/webstore/detail/jazz-midi/jhdoobfdaejmldnpihidjemjcbpfmbkm
	// Paste this into the Javascript console on any https website (sites using http won't work).
	// Only works in Chrome

	document.body.innerHTML = ''

	async function addController () {
	const serviceUuid = '03b80e5a-ede8-4b33-a751-6ce34ec4c700'

	{
	"presets": [
	"./config/babel-preset-myapp"
	],
	"plugins": [
	"transform-class-properties"
	]
	}

	// JS implementation of series definition:
	// https://en.wikipedia.org/wiki/Sine#Series_definition

	function sine (x, iterations = 100) {
	let v = 0
	for (let i = 0; i < iterations; i++) {
	v += (Math.pow(-1, i)/factorial((2 * i) + 1)) * Math.pow(x, (2 * i) + 1)
	}
	return v
	}

	import { join } from 'path'
	import { readdir, stat } from 'fs-promise'

	async function rreaddir (dir, allFiles = []) {
	const files = (await readdir(dir)).map(f => join(dir, f))
	allFiles.push(...files)
	await Promise.all(files.map(async f => (
	(await stat(f)).isDirectory() && rreaddir(f, allFiles)
	)))
	return allFiles

	'use strict'

	const tests = [
	test(testFor),
	test(testForAlt),
	test(testForEach),
	test(testReduceFunction),
	test(testReduceArrows),
	test(testForOf)
	]