basekays

function Penguin(name) {
    this.name = name;
    this.numLegs = 2;
}

function Emperor(name) {
    this.name = name;
};

Emperor.prototype = new Penguin();

basekays

// first //
_.first = function(array) {
  return array[0];
}

//
_.first = function(array, [i]) {
  return array[i];
}

basekays

// first //
_.first = function(array) {
  return array[0];
}

// first with [i] //
_.first = function(array, [i]) {
  return array[i];
}

basekays

var _ = {};

//last element//
_.last = function(array) {
  var index = array.length-1;
  return array[index];
}

//last i elements//
_.last = function(array, i) {

basekays

var _ = {};

_.every = function(list, condition) {
  for (var i = 0; i<list.length; i++) {
    if (!condition(list[i])) {
      return false;
    }
  }
  return true;
}

basekays

var _ = {};

_.filter = function(list, condition) {
  var resultArray = [];
  for (var i = 0; i<list.length; i++) {
    if (condition(list[i])) {
      resultArray.push(list[i]);
    }
  }
  return resultArray;

basekays

var _ = {};

_.reject = function(list, condition) {
  var resultArray = [];
  for (var i = 0; i<list.length; i++) {
    if (!condition(list[i])) {
      resultArray.push(list[i]);
    }
  }
  return resultArray;

basekays

var _ = {};

_.some = function(list) {
  for (var i = 0; i<list.length; i++) {
    if (list[i]) {
      return true;
    }
  }
  return false;
}

basekays

var _ = {};

_.contains = function(list, value) {
  for (var i = 0; i<list.length; i++) {
    if (list[i] === value) {
      return true;
    }
  }
  return false;
}

basekays

var _ = {};

_.find = function(list, condition) {
  var resultArray = [];
  for (var i = 0; i<list.length; i++) {
    if (condition(list[i])) {
      resultArray.push(list[i]);
    }
  }
  if (resultArray.length) {