Bohdan Zamchenco ensisf

https://codesandbox.io/s/base-redux-flow-xtngf?file=/src/index.js:0-1476

// Base redux
const createStore = (reducer, initialState = {}) => {
  let state = initialState;

  const subscribers = [];

  const dispatch = (action /* {type: SOME_TYPE} */) => {
    state = reducer(state, action);

The -m option specifies the parent number. This is because a merge commit has more than one parent, and Git does not know automatically which parent was the mainline, and which parent was the branch you want to un-merge.

When you view a merge commit in the output of git log, you will see its parents listed on the line that begins with Merge:

commit 8f937c683929b08379097828c8a04350b9b8e183
Merge: 8989ee0 7c6b236
Author: Ben James <ben@example.com>
Date:   Wed Aug 17 22:49:41 2011 +0100

Merge branch 'gh-pages'

Array inersection

const intersection = (a, b) => a.filter(x => b.includes(x)

Details

Base event channel

class EventChannel {
  _subscribers = {};

  subscribe(eventName, cb) {
    const event = this._subscribers[eventName];
    const isEventNew = event === undefined || event === null;

    if (isEventNew) {

	// Глобальный счётчик запросов
	let lastRequest = 0

	export function send (...args, callback) {
	// Запоминаем какой номер у этого запроса
	const thisRequest = ++lastRequest
	fetch(...args).then(responce => {
	// Игнорируем ответ, если номер этого запроса
	// не совпадает с номером последнего
	if (thisRequest !== lastRequest) return

	<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
	viewBox="0 0 1000 20" preserveAspectRatio="none" width="100%" height="20">

	<polygon points="0,0 1000,0 500,20" style="fill:#cc3333; stroke: lightgrey; stroke-width: 6;"/>
	</svg>