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<a href="tel:1-234-567-8910" aria-label="Телефон поддержки" target="_blank" rel="noopener noreferrer">+1 (234) 567-89-10</a>

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<video class=“mainSlideBackgroundVideo”preload=“auto” playsinline autoplay muted loop>
   <source src="https://archive.org/download/WebmVp8Vorbis/webmvp8_512kb.mp4" type="video/mp4">
  <source src="https://archive.org/download/WebmVp8Vorbis/webmvp8.ogv" type="video/ogg">
  <source src="https://archive.org/download/WebmVp8Vorbis/webmvp8.webm" type="video/webm">
</video>

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export class EventObserver {
  constructor() {
    this.observers = []
  }

  subscribe(fn) {
    this.observers.push(fn)
  }

  unsubscribe(fn) {

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const output = getQuestions.map(async groupQuestions => {
  // Получим описание группы
  const { title } = getGroupQuestions.find(groupItem => _.isEqual(groupItem._id, groupQuestions._id))
  // Получим блоки для вопроса.
  const getQuestionsOutput = groupQuestions.entres.map(async questions => {
    return { ...questions, blocks: await Block.find({ _id: { $in: questions.blocks } }) }
  })

  return {
    title: title,

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// N first elements from array

const ar = [1,2,3,4,5,6,7]
const arAfter = ar.filter((i, index) => (index < 3))

// split array to few array wit N elements
const foldm = (r, j) => {
  return r.reduce((a, b, i, g) => (!(i % j) ? a.concat([g.slice(i, i + j)]) : a), [])
}

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// original gist
const shuffleArray = arr => arr.sort(() => Math.random() - 0.5);

// fully random by @BetonMAN
const shuffleArray = arr => (
  arr
    .map(a => [Math.random(), a])
    .sort((a, b) => a[0] - b[0])
    .map(a => a[1]);
);

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const somevar = { a: 'foo', b: 'bar' }[switchval] || 'default';


//

let switchval = 3;
let somevar = ['a','b'][switchval] || 'default';

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const re = /^(\+7|7|8)?[\s\-]?\(?[489][0-9]{2}\)?[\s\-]?[0-9]{3}[\s\-]?[0-9]{2}[\s\-]?[0-9]{2}$/gm

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const rewireReactHotLoader = require("react-app-rewire-hot-loader")
const rewired = require("react-app-rewired")
const rupture = require("rupture")

const { injectBabelPlugin } = require("react-app-rewired")

function contailCSSLoader(obj) {
  const reg = /css-loader/
  if (typeof obj === "string") {
    return reg.test(obj)

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import { buildFavicon, buildInjectFavicon } from './tools/build-favicon'
import { dest, lastRun, parallel, series, src, watch } from 'gulp'

import { create as bsCreate } from 'browser-sync'
import { buildCss } from './tools/build-css'
import { buildFiles } from './tools/build-files'
import { buildImage } from './tools/build-image'
import { buildPug } from './tools/build-pug'
import { buildSvg } from './tools/build-svg'
import config from './webpack.config'