thmain

const countNegative = ( M, n, m ) => {
    var count = 0;
    // start from top right
    var i = 0;
    var j = m - 1; 
 
    while ( j >= 0 && i < n ) {
        if ( M[i][j] < 0 ) {
            
            // last negative number is at index j. Hence, there j + 1 negative numebrs at index i

thmain

function realSum(a, b) {
  return a + b;
};

console.log(realSum(5, 3)); // 8

var sum5 = curryIt(realSum, 5);
console.log(sum5(4)); // 9

thmain

var curryIt = function(fn) {
  var fnArgsWhileBeingCurried = Array.prototype.slice.call(arguments, 1);
  return function() {
  	var fnArgsAfterBeingCurried = Array.prototype.slice.call(arguments, 0); 
  	return fn.apply(this, fnArgsWhileBeingCurried.concat(fnArgsAfterBeingCurried));
  };
};

thmain

function realSum(a, b) {
  return a + b;
};

function sum(a, b) {

  return b ?
    realSum(a, b) :
    function(b) {
      // This anonymous function has access to variable `a` via closure

thmain

'use strict';

function flattenThreeLevelNestedTree() {
  var movieLists = [{
    name: "Instant Queue",
    videos: [{
      "id": 70111470,
      "title": "Die Hard",
      "boxarts": [{
        width: 150,

thmain

'use strict';

function commonAncestor(n1, n2) {
  var inOrderTra = inOrder(this);
  var postOrderTra = postOrder(this);

  var i1 = inOrderTra.indexOf(n1);
  var i2 = inOrderTra.indexOf(n2);
  var middleNodes = inOrderTra.splice(i1 + 1, i2);

thmain

'use strict';

function inOrderSuccessor(node) {
  if (!node) {
    return null;
  }

  if (node.right) {
    return leftMostChild(node.right);
  } else {

thmain

'use strict';


Array.prototype.zip = function(left, right, combinerFunction) {
  let results, length;

  length = Math.min(left.length, right.length);
  results = [];
  for (let i = 0; i < length; i++) {
    results.push(combinerFunction(left[i], right[i]));

thmain

'use strict';

Array.prototype.zip = function(left, right, combinerFunction) {
  let results, length;

  length = Math.min(left.length, right.length);
	results = [];
  for (let i = 0; i < length; i++) {
    results.push(combinerFunction(left[i], right[i]));
  }

thmain

'use strict';

function zip() {
  var videos = [{
      "id": 70111470,
      "title": "Die Hard",
      "rating": 4.0,
    }, {
      "id": 654356453,
      "title": "Bad Boys",