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class charactersCounter {
  constructor(input) {
    this.inputArr = input.split('');
    this.availableLetters = [...new Set(this.inputArr)];
    this.mostPopular = {
      letter: '',
      amount: 0
    }
  }
  

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const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

setTimeout(() => console.log('1200ms elapsed'), 1200);

const foo = () => {
    let intervalId;
    const intervalFunction = async() => {
        clearInterval(intervalId); //clear so it will not execute again after 100ms
        console.log('interval executed');
        await sleep(120); //some long action

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const sleep = require('./utilities/sleep');

const mySetInterval = (callback, ms, ...args) => {
    let token = {
        cancelled: false
    };
    let id = setInterval((...args) => {
        callback(token, ...args);
    }, ms, ...args);
    return function cancel() {

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const getPixels = require("get-pixels");

//1px only black https://i.imgur.com/dStJ1Og.png
//2px only black https://i.imgur.com/5z46WVp.png
//88x62px only black https://i.imgur.com/ZtGMUh9.png
//88x62px black and red https://i.imgur.com/67IZCaD.png
//220x297px black and red https://i.imgur.com/KTNnJGF.jpg
function check(uintArr) {
    let r = uintArr[0], g = uintArr[1], b = uintArr[2], a = uintArr[3];
    for (let i = 0, l = uintArr.length; i < l; i += 4) {

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const getPixels = require("get-pixels");

//1px only black https://i.imgur.com/dStJ1Og.png
//2px only black https://i.imgur.com/5z46WVp.png
//88x62px only black https://i.imgur.com/ZtGMUh9.png
//88x62px black and red https://i.imgur.com/67IZCaD.png
//220x297px black and red https://i.imgur.com/KTNnJGF.jpg
//3000x4000px black with red dot(1px) https://i.imgur.com/JiHtQuR.jpg

getPixels("https://i.imgur.com/JiHtQuR.jpg", function(err, ndarray) {

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...
"plugins": [
        [
          "@electron-forge/plugin-webpack",
          {
            "mainConfig": "./webpack.main.config.js",
            "renderer": {
              "config": "./webpack.renderer.config.js",
              "entryPoints": [
                {

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// #bluebird, #bluebird-retry, #bluebird-cancellation, #eventBus
const Promise = require('bluebird');
const retry = require('bluebird-retry');
const eventBus = require('js-event-bus')();

Promise.config({warnings: true, longStackTraces: true, cancellation: true, monitoring: true});

//promise child function
const child = () => {
    return new Promise((resolve, reject, onCancel) => {

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// this is simple 1 file 1 route app;
// #bluebird, #bluebird-retry, #bluebird-cancellation, #eventBus
// use bluebird retry for 4s; after 1.5s through eventBus invoke bluebird-cancellation which should stop bluebird-retry as well

const express = require('express');
const app = express();
const path = require('path');
const bodyParser = require('body-parser');

app.use(bodyParser.json());

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// this is simple 1 file 1 route, 
// app with cancellation of promise with bluebird library
//
// canellation of promise which have interval also stopping interval with onCancel

const express = require('express');
const app = express();
const path = require('path');
const bodyParser = require('body-parser');
const Promise = require('bluebird');

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'use strict'

const chalk = require('chalk')
const electron = require('electron')
const path = require('path')
const { say } = require('cfonts')
const { spawn } = require('child_process')
const webpack = require('webpack')
const WebpackDevServer = require('webpack-dev-server')
const webpackHotMiddleware = require('webpack-hot-middleware')