mikepuerto

// example input 'aaaabbcccdaa'
// example output 'a4b2c3da2'

function compress(str) {
  var input = str.split('')
    , count = 1
    , ret = [];

  for (var i = 0, len = input.length; i < len; i++) {
    if (input[i] === input[i + 1]) count++;

mikepuerto

/**
 * micro event emitter
 * @author [email protected]
 * @gist https://gist.github.com/mikepuerto/1418a024ab93e1cb353305c9ceadfbde
 */

class EventEmitter {

  constructor() {
    this._eventHandlers = {};