MrMeison

const withAcknowledgement = (socketFunc) => (...args) => new Promise((resolve, reject) => {
    let state = 'pending'; // eslint-disable-line
    const timer = setTimeout(() => {
      state = 'rejected';
      reject();
    }, 3000);

    socketFunc(...args, (response) => {
      if (state !== 'pending') return;

MrMeison

// Auth провайдер, обертка для прокидывания информации о пользователе
const AuthProvider = ({ children }) => {
  const currentUser = JSON.parse(localStorage.getItem('user'));

  const [user, setUser] = useState(currentUser ? { username: currentUser.username } : null);
  const logIn = (userData) => {
    localStorage.setItem('user', JSON.stringify(userData));
    setUser({ username: userData.username });
  };

MrMeison

const Map = (props: PropsMap) => {
    ...
    useEffect(() => {
      if (!map) {
        return;
      }
  
      const layerGroup = new LayerGroup();
  
      points.forEach((point) => {

MrMeison

import {useEffect, useState, MutableRefObject} from 'react';
import {Map, TileLayer} from 'leaflet';
import {City} from '../types/city';

function useMap(
  mapRef: MutableRefObject<HTMLElement | null>,
  city: City
): Map | null {
  const [map, setMap] = useState<Map | null>(null);

MrMeison

export const useVideo = (videoRef: RefObject<HTMLVideoElement>, device: MediaDeviceInfo) => {
    const [started, setStarted] = useState(false);
    useEffect(() => {
        if (!videoRef.current || !device) {
            return noop;
        }

        const videoService = new VideoService();

        const start = async () => {

MrMeison

const { useEffect, useRef } = require("react");

const noop = () => {};

class Editor {
    constructor(element) {
        this.element = element;
    }

    destroy() {

MrMeison

var simpleObject = {
    property: 4, 
    method: function () {
      console.log(this.property);
    }
  };
  
  var simpleFunction = function() {
   this.property = 5;
   (function() {

MrMeison

// 1 вариант: выхов от результата. Пример задача на суммирование.
const fn = (...args) => {
    const wrapper = () => {
        return fn;
    }

    return wrapper;
}

console.log(fn()()()());

MrMeison

{
  "id": "42",
  "author": "Ilya O'Reilly",
  "comment": "a film that changed my life, a true masterpiece, post-credit scene was just amazing omg.",
  "date": "2019-05-11T16:12:32.554Z",
  "emotion": "neutral-face"
}

MrMeison

{
  "id": "0",
  "comments": [
    $Comment.id$, $Comment.id$
  ],
  "film_info": {
    "title": "A Little Pony Without The Carpet",
    "alternative_title": "Laziness Who Sold Themselves",
    "total_rating": 5.3,
    "poster": "images/posters/blue-blazes.jpg",