basekays

var _ = {};

_.pluck = function (list, key) {
  var result = [];
  for (var i = 0; i<list.length; i++) {
    if (list[i][key]) {
      result.push(list[i][key]);
    }
  }
  return result;

basekays

function titleCase(str) {
  var strLowerCase = str.toLowerCase();
  var split = strLowerCase.split(" ");
    for (var i = 0; i< split.length; i++) {
      var firstChar = split[i].charAt(0).toUpperCase(); 
      split[i] = firstChar + split[i].substr(1);
    }
  var newStr = split.join(" ");
  return newStr;

basekays

//your code here!
/*
Q1. Using your knowledge of JavaScript data types (i.e. numbers, strings, booleans, 
arrays and objects), represent our solar system as data (hint: the link is to a 
Wikipedia article – you should use it). You can include as many attributes as you 
like, but the following are required: 
- Age of the Solar System
- Distance from the center of the galaxy
- Number of known comets
- The Planets

basekays

  // Call iterator(value, key, collection) for each element of collection.
  // Accepts both arrays and objects.
  //
  // Note: _.each does not have a return value, but rather simply runs the
  // iterator function over each item in the input collection.
  
  
  _.each = function(collection, iterator) {
    _.each(collection, iterator(value, key, collection) {
    }

basekays

  _.each = function(collection, iterator) {
    if (Array.isArray(collection)) {
      for (var i = 0; i<collection.length; i++) {
        return iterator(collection[i], i, collection);
      }
    } else {
      for (var i in collection) {
        return iterator(collection[i]);
      }

basekays

var memoInCallback, itemInCallback;
_.reduce(['item'], function(memo, item) {
  memoInCallback = memo;
  itemInCallback = item;
}, 'memo');
expect(memoInCallback).to.equal('memo');
expect(itemInCallback).to.equal('item');

basekays

  // Reduces an array or object to a single value by repetitively calling
  // iterator(accumulator, item) for each item. accumulator should be
  // the return value of the previous iterator call.
  //  
  // You can pass in a starting value for the accumulator as the third argument
  // to reduce. If no starting value is passed, the first element is used as
  // the accumulator, and is never passed to the iterator. In other words, in
  // the case where a starting value is not passed, the iterator is not invoked
  // until the second element, with the first element as its second argument.

basekays

_.reduce = function(collection, iterator, accumulator) {
  for (var i = 0; i < collection.length; i++) {
    accumulator = iterator(accumulator, collection[i]);
  }
  if (accumulator === undefined) {
    return collection[0];
  }
  return accumulator;
};

basekays

/*
_.reduce = function(collection, iterator, accumulator) {
  for (var i = 0; i < collection.length; i++) {
    accumulator = iterator(accumulator, collection[i]);
  }
  if (accumulator === undefined) {
    return collection[0];
  }
  return accumulator;
};

basekays

var getElementsByClassName = function(className, n) {
  // your code here
  var resultArr = [];
  var searchClass = function(element) {
  	if (element.classList) {
  		if (element.classList.contains(className)) {
  			resultArr.push(element);
  		}
  	}
  	for (var i = 0; i < element.childNodes.length; i++) {