sheniff

var sum = 0;

for (var i = 0; i < 1000; i++) {
  if(i % 3 === 0 || i % 5 === 0) {
    sum += i;
  }
}

console.log(sum);

sheniff

// Class generator
var Class = function(parentCls) {
  var Klass = function() {
    this.init.apply(this, arguments);
  };
  
  if(parentCls){
    var subClass = function(){};
    subClass.prototype = parentCls.prototype;
	  Klass.prototype = new subClass;

sheniff

// closure
(function() {
  function funcA() {}
  var funcB = function() {};
  funcC = function() {};
})()

console.log(typeof funcA); // undefined
console.log(typeof funcB); // undefined
console.log(typeof funcC); // function

sheniff

function quickSort (arr) {
  if(arr.length <= 1) {
    return arr;
  }

  var pivot = choosePivot(arr);
  var divider = divide(arr, pivot);
  var a1 = quickSort(arr.slice(0, divider));
  var a2 = quickSort(arr.slice(divider + 1, arr.length));
  a1.push(arr[divider]);

sheniff

function mergeSort (arr, st, end) {
  var res;

  st = st || 0;
  end = end || arr.length;
  if(end - st > 1) {
    var mid = st + Math.round((end - st)/2);
    var a1 = mergeSort(arr, st, mid);
    var a2 = mergeSort(arr, mid, end);
    res = merge(a1, a2);

sheniff

function bubbleSort (arr) {
  var l = arr.length,
      tmp = null,
      j = l - 1,
      i;

  if(l < 2) return arr;

  for(; j >= 0; j--) {
    for(i = 0; i < j; i++) {

sheniff

function findAllCombinations(numParens) {
  var totalCombs = 0;
  if(numParens > 0) {
    totalCombs = attachParen('', numParens, numParens, totalCombs);
  }
  return totalCombs;
}

function attachParen(str, open, close, total) {
  if(open > 0) {

sheniff

// Catalan Numbers to mathematically verify number of combinations
// E.g, the number of possible combinations of parentheses
// http://en.wikipedia.org/wiki/Catalan_number
function catalanNumber(numParens) {
  var total = 1;

  for(var i = 2; i <= numParens; i++) {
    total *= (numParens + i) / i;
  }

sheniff

// LinkedListNode Class (Module pattern with cached functions)
!function(){
  LinkedListNode = function LinkedListNode(data) {
    this.node = [data, null];
  }

  LinkedListNode.prototype.getNext = getNext;
  LinkedListNode.prototype.getData = getData;
  LinkedListNode.prototype.setNext = setNext;
  LinkedListNode.prototype.setData = setData;

sheniff

function balancedPars(str) {
  var result = 0;

  if(typeof(str) !== 'string') return false;

  if(str) {
    result = str.split('')
      .map(function(elem){
        return elem === '(' ? 1 : (elem === ')' ? -1 : 0);
      })