Behnam behnamazimi

	// abstract class, not intended to be instantiated directly
	class CalendarItem {
	static #UNSET = Symbol("unset")
	static #isUnset(v) {
	return v === this.#UNSET;
	}
	static {
	for (let [idx,msg] of [
	"ID is already set.",
	"ID is unset.",

	/**
	* Sets up a DOM MutationObserver that watches for elements using undefined CSS
	* class names. Performance should be pretty good, but it's probably best to
	* avoid using this in production.
	*
	* Usage:
	*
	* import cssCheck from './checkForUndefinedCSSClasses.js'
	*
	* // Call before DOM renders (e.g. in <HEAD> or prior to React.render())

	function partition(inputArray, callback) {
	const result = {};
	for (const [indexOfValue, value] of inputArray.entries()) {
	const propertyKey = callback(value, indexOfValue);
	if (propertyKey === null \|\| propertyKey === '') {
	continue;
	}
	if (!{}.hasOwnProperty.call(result, propertyKey)) {
	result[propertyKey] = [];
	}

	class Spiderman {
	lookOut() {
	alert('My Spider-Sense is tingling.');
	}
	}

	let miles = new Spiderman();
	miles.lookOut();

	/*
	Copy this into the console of any web page that is interactive and doesn't
	do hard reloads. You will hear your DOM changes as different pitches of
	audio.

	I have found this interesting for debugging, but also fun to hear web pages
	render like UIs do in movies.
	*/

	const audioCtx = new (window.AudioContext \|\| window.webkitAudioContext)()

	.App {
	text-align: center;
	}

	.App-logo {
	animation: App-logo-spin infinite 20s linear;
	height: 40vmin;
	pointer-events: none;
	}

	# Reference: https://www.exclamationlabs.com/blog/continuous-deployment-to-npm-using-gitlab-ci/

	# GitLab uses docker in the background, so we need to specify the
	# image versions. This is useful because we're freely to use
	# multiple node versions to work with it. They come from the docker
	# repo.
	# Uses NodeJS V 9.4.0
	image: node:9.4.0

	# And to cache them as well.

	const recordAudio = () => {
	return new Promise(resolve => {
	navigator.mediaDevices.getUserMedia({ audio: true })
	.then(stream => {
	const mediaRecorder = new MediaRecorder(stream);
	const audioChunks = [];

	mediaRecorder.addEventListener("dataavailable", event => {
	audioChunks.push(event.data);
	});