fabriciofmsilva

// Old way
import { from } from 'rxjs/observable/from';

const source$ = from([1, 2, 3, 4, 5, 6, 7, 8, 9]);

source$
  .filter(x => x % 2)
  .map(x => x * 2)
  .scan((acc, next) => acc + next, 0)
  .startWith(0)

fabriciofmsilva

const url = "https://api.example.com/autocomplete"
let controller;
let signal;

autocompleteInput.addEventListener('keyup', () => {
  if (controller !== undefined) {
    // Cancel the previous request
    controller.abort();
  }

fabriciofmsilva

config.entry = {
  app: [
    path.resolve(__dirname, `../app/client/client.jsx`),
  ],
  polyfills: [
    `babel-polyfill`,
    `whatwg-fetch`,
  ],
};

fabriciofmsilva

swPrecache.write(path.resolve(__dirname, `../public/service-worker.js`), {
  cacheId: `know-it-all`,
  filename: `service-worker.js`,
  stripPrefix: `public/`,
  staticFileGlobs: [
    `public/app.*.js`, // don't include the polyfills version
    `public/*.{html,ico,json,png}`,
  ],
  dontCacheBustUrlsMatching: [
    /\.(js|json)$/, // I'm cache busting js and json files myself

fabriciofmsilva

var HTMLChanger = (function() {
  var contents = 'contents'

  var changeHTML = function() {
    var element = document.getElementById('attribute-to-change');
    element.innerHTML = contents;
  }

  return {
    callChangeHTML: function() {

fabriciofmsilva

var Exposer = (function() {
  var privateVariable = 10;

  var privateMethod = function() {
    console.log('Inside a private method!');
    privateVariable++;
  }

  var methodToExpose = function() {
    console.log('This is a method I want to expose!');

fabriciofmsilva

var TeslaModelS = function() {
  this.numWheels = 4;
  this.manufacturer = 'Tesla';
  this.make = 'Model S';
}

TeslaModelS.prototype.go = function() {
  // Rotate wheels
}

fabriciofmsilva

var TeslaModelS = function() {
  this.numWheels    = 4;
  this.manufacturer = 'Tesla';
  this.make         = 'Model S';
}

TeslaModelS.prototype = function() {
  var go = function() {
    // Rotate wheels
  };

fabriciofmsilva

var Subject = function() {
  this.observers = [];

  return {
    subscribeObserver: function(observer) {
      this.observers.push(observer);
    },
    unsubscribeObserver: function(observer) {
      var index = this.observers.indexOf(observer);
      if(index > -1) {

fabriciofmsilva

// Implementation