JiLiZART

var fPrev, fCurr;

function fib (n) {
  var result;
  
  if (n < 0) throw Error('invalid given number');
  
  if (n <= 1) {
    return n;
  }

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function gcd(a, b) {
  if (a < 0 || b < 0) throw Error ('positive numbers only');
  
  if (a === 0 || b === 0)
    return Math.max(a, b);
  else if (a >= b)
    return gcd(a % b, b);
  else
    return gcd(a, b % a);
}

JiLiZART

function get_pos(arr, number) {
  var l = 0,
      r = arr.length,
      m;

  while (l < r) {
    m = Math.floor( (l + r) / 2 );
    
    if (number < arr[m]) {
      r = m;

JiLiZART

function sort(nums)
{
    if (!nums.length) return nums;
  
    var a = [], b = [], p = nums[0];
  
    for (var i = 1; i < nums.length; i++)
    {
      if (nums[i] < p)
        a[a.length] = nums[i];

JiLiZART

/**
 * @module Page
 */
modules.define(
    'page',
    ['i-bem__dom', 'BEMHTML', 'jquery' 'modal'],
    function (provide, BEMDOM, BEMHTML, $, Modal) {

        /**
         * @exports

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/**
 * @module input_type_tel
 */
modules.define(
    'input',
    ['i-bem__dom', 'jquery'],
    function (provide, BEMDOM, jQuery, Input) {

        /* borschik:include:../../libs/intl-tel-input/build/js/intlTelInput.js */

JiLiZART

var loading = {},
    loaded = {},
    head = document.getElementsByTagName('head')[0],
    runCallbacks = function(path, type) {
        var cbs = loading[path], cb, i = 0;
        delete loading[path];
        while(cb = cbs[i++]) {
            cb[type] && cb[type]();
        }
    },

JiLiZART

@kangax's ES6 quiz, explained

@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).

Here we go with the explanations:

Question 1:

(function(x, f = () => x) {

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var loading = {},
    loaded = {},
    head = document.getElementsByTagName('head')[0],
    runCallbacks = function (path, type) {
        var cbs = loading[path], cb, i = 0;
        delete loading[path];
        while (cb = cbs[i++]) {
            cb[type] && cb[type]();
        }
    },

JiLiZART

enum Event {
    enum app: String {
        case install = "app install"
        case launch = "app launch"
    }
    
    enum list: String {
        case created = "list created"
        case deleted = "list deleted"
        case refreshed = "list refreshed"