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const fastify = require('fastify');
const fastifyAutoPush = require('fastify-auto-push');
const fs = require('fs');
const path = require('path');
const {promisify} = require('util');

const fsReadFile = promisify(fs.readFile);

const STATIC_DIR = path.join(__dirname, 'static');
const CERTS_DIR = path.join(__dirname, 'certs');

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/**
 * VirtualList: a universal windowed list for large datasets
 *
 * @param {Array} data - array of rows to render
 * @param {string} rowHeight - height of row container in pixels
 * @param {function} renderRow - function to render a single homogenous row
 * @param {number} overscanCount - number of extra rows to pre-render ahead/behind the window
 * @param {Object} rest - additional props
 *
 * @example

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function relativize(url, to) {
	let [,base,origin] = to.match(/^(([a-z]+:\/\/[^\/]+)(\/.*?)?)(\/[^\/]*)?$/i)
  url = String(url).replace(/^\/([^\/])/g, `${origin}/$1`);
	if (!url.match(/^([a-z]+\:)\/\//i)) url = `${base}/${url}`;
	return url;
}

ezekielchentnik

const fps = {
    sampleSize : 60,    
    value : 0,
    _sample_ : [],
    _index_ : 0,
    _lastTick_: false,
    tick : function(){
        // if is first tick, just set tick timestamp and return
        if( !this._lastTick_ ){
            this._lastTick_ = performance.now();

ezekielchentnik

export class RingBuffer {
  constructor(capacity, data = []) {
    this._capacity = capacity;
    this._buffer = new Array(this._capacity);
    this._writeIndex = 0;
    this._readIndex = 0;
    this._msgsReceived = 0;

    this._lastMeasurement = performance.now();
    this._msgsSinceLast = 0;

ezekielchentnik

import React, { useState, useEffect, createContext, useContext } from "react";
import { render } from "react-dom";
import { BehaviorSubject, isObservable } from "rxjs";

const Context = createContext();
const Provider = Context.Provider;

const useStream = initialState => {
  let source = isObservable(initialState)
    ? initialState

ezekielchentnik

https://cdn.shopify.com/s/files/1/1338/7937/files/Bootstrap_Farmer_Ultimate_Microgreen_Cheatsheet_Printable.pdf?v=1604180053

ezekielchentnik

const app = require('express')();
const http = require('http').Server(app);
const io = require('./io.js')(http);
  
io.on('connection', socket =>{
  console.log('someone connected');
  socket.on('start',  msg => {
    io.emit('message', msg);
  });
  socket.on('disconnect',  () => {

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// we augment the window.history instance so that it will dispatch an event when using push/replace
// this allows us to create event stream and listen to all history state changes
export const patchHistory = history => {
  const wrap = m => (state, title, url) => {
    m.call(history, state, title, url);
    let e = new Event(m.name.toLowerCase());
    e.state = state;
    dispatchEvent(e);
  };

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// Wait at most one frame before processing events.
const BUDGET = 16.7;
let isRequestIdleCallbackScheduled = false;

const scheduleWork = () => {
  // Only schedule the rIC if one has not already been set.
  if (isRequestIdleCallbackScheduled) {
    return;
  }