Daniel Cortes ldco2016

## Ruby.txt
DCortes-MBP-3:~ ldco2016$ irb
2.3.0 :001 > def flattify(array)
2.3.0 :002?>   array.each_with_object([]) do |element, flattened|
2.3.0 :003 >       flattened.push *(element.is_a?(Array) ? flattify(element) : element)
2.3.0 :004?>     end
2.3.0 :005?>   end
 => :flattify
2.3.0 :006 > flattify([1,2,3,4,[1,2,3,4],5])
 => [1, 2, 3, 4, 1, 2, 3, 4, 5]
2.3.0 :007 >

## gist:99f9a366b0e2573cf3d494c894111d1b
37840.png
The uploaded file could not be moved to wp-content/uploads/2016/09.
37840.png
Unable to create directory wp-content/uploads/2016/09. Is its parent directory writable by the server?

## gist:f306fa205e263f99b4fe961570f9f9df
JavaScript

Hey mentor,

I was working through an assignment last night and came across a bug. I'm so confused!

The text in the alert is showing up as "undefined" instead of either "A Unicorn", "A hug", or "Fresh Laundry" and I'm not quite sure what's going on. Can you point me in the right direction?

-Student

## chaser.html
<!DOCTYPE html>
<html>
<body>

<script>

// person constructor
function Person(name, rank) {
    this.name = name;
    this.rank = rank;

## gist:117b8a16a3644226b6132da90ccf41f0
<h2 class='text-center'>Sign up</h2>
  <div class="row">
    <div class="col-md-12">
      <%= form_for(resource, as: resource_name, :html => {class: "form-horizonal", role: "form"}, url: registration_path(resource_name)) do |f| %>
  <%= devise_error_messages! %>
    </div>
  </div>


  <div class="form-group">

## wit.ai error
danales-MacBook-Pro:iris danale$ node bin/run.js
Logged in as microurb of team urban-farming, but not yet connected to a channel
iris is listening on 3000 in development mode.
{ Error: Internal Server Error
    at Request.callback (/Users/danale/Projects/iris/node_modules/superagent/lib/node/index.js:675:11)
    at /Users/danale/Projects/iris/node_modules/superagent/lib/node/index.js:883:18
    at IncomingMessage.<anonymous> (/Users/danale/Projects/iris/node_modules/superagent/lib/node/parsers/json.js:16:7)
    at emitNone (events.js:91:20)
    at IncomingMessage.emit (events.js:185:7)
    at endReadableNT (_stream_readable.js:974:12)

## caesar-cipher.js
process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

## mars-exploration.js
function main() {
    var S = readLine();
    const expectedSignal = 'SOS';
    let errorCount = 0;

    for (i = 0, len = S.length; i <len; i += 3) {
        const currentSignal = S.slice(i, i + 3);
        if (currentSignal === expectedSignal) continue;
        if (currentSignal[0] !== expectedSignal[0]) errorCount += 1;
        if (currentSignal[1] !== expectedSignal[1]) errorCount += 1;

## diagonal_difference.js
function main() {
    var n = parseInt(readLine());
    var a = [];
    for(a_i = 0; a_i < n; a_i++){
       a[a_i] = readLine().split(' ');
       a[a_i] = a[a_i].map(Number);
    }

    let sumPrimaryDiagonal = sumSecondaryDiagonal = 0;


## plus_minus.js
function main() {
    var n = parseInt(readLine());
    arr = readLine().split(' ');
    arr = arr.map(Number);

    let positive = negative = zero = 0;
    for (i =0; i < n; i++){
        let current = arr[i];
        if (current > 0) {
            positive += 1;
	DCortes-MBP-3:~ ldco2016$ irb
	2.3.0 :001 > def flattify(array)
	2.3.0 :002?> array.each_with_object([]) do \|element, flattened\|
	2.3.0 :003 > flattened.push *(element.is_a?(Array) ? flattify(element) : element)
	2.3.0 :004?> end
	2.3.0 :005?> end
	=> :flattify
	2.3.0 :006 > flattify([1,2,3,4,[1,2,3,4],5])
	=> [1, 2, 3, 4, 1, 2, 3, 4, 5]
	2.3.0 :007 >
	37840.png
	The uploaded file could not be moved to wp-content/uploads/2016/09.
	37840.png
	Unable to create directory wp-content/uploads/2016/09. Is its parent directory writable by the server?
	JavaScript

	Hey mentor,

	I was working through an assignment last night and came across a bug. I'm so confused!

	The text in the alert is showing up as "undefined" instead of either "A Unicorn", "A hug", or "Fresh Laundry" and I'm not quite sure what's going on. Can you point me in the right direction?

	-Student
	<!DOCTYPE html>
	<html>
	<body>

	<script>

	// person constructor
	function Person(name, rank) {
	this.name = name;
	this.rank = rank;
	<h2 class='text-center'>Sign up</h2>
	<div class="row">
	<div class="col-md-12">
	<%= form_for(resource, as: resource_name, :html => {class: "form-horizonal", role: "form"}, url: registration_path(resource_name)) do \|f\| %>
	<%= devise_error_messages! %>
	</div>
	</div>


	<div class="form-group">
	danales-MacBook-Pro:iris danale$ node bin/run.js
	Logged in as microurb of team urban-farming, but not yet connected to a channel
	iris is listening on 3000 in development mode.
	{ Error: Internal Server Error
	at Request.callback (/Users/danale/Projects/iris/node_modules/superagent/lib/node/index.js:675:11)
	at /Users/danale/Projects/iris/node_modules/superagent/lib/node/index.js:883:18
	at IncomingMessage.<anonymous> (/Users/danale/Projects/iris/node_modules/superagent/lib/node/parsers/json.js:16:7)
	at emitNone (events.js:91:20)
	at IncomingMessage.emit (events.js:185:7)
	at endReadableNT (_stream_readable.js:974:12)
	process.stdin.resume();
	process.stdin.setEncoding('ascii');

	var input_stdin = "";
	var input_stdin_array = "";
	var input_currentline = 0;

	process.stdin.on('data', function (data) {
	input_stdin += data;
	});
	function main() {
	var S = readLine();
	const expectedSignal = 'SOS';
	let errorCount = 0;

	for (i = 0, len = S.length; i <len; i += 3) {
	const currentSignal = S.slice(i, i + 3);
	if (currentSignal === expectedSignal) continue;
	if (currentSignal[0] !== expectedSignal[0]) errorCount += 1;
	if (currentSignal[1] !== expectedSignal[1]) errorCount += 1;
	function main() {
	var n = parseInt(readLine());
	var a = [];
	for(a_i = 0; a_i < n; a_i++){
	a[a_i] = readLine().split(' ');
	a[a_i] = a[a_i].map(Number);
	}

	let sumPrimaryDiagonal = sumSecondaryDiagonal = 0;
	function main() {
	var n = parseInt(readLine());
	arr = readLine().split(' ');
	arr = arr.map(Number);

	let positive = negative = zero = 0;
	for (i =0; i < n; i++){
	let current = arr[i];
	if (current > 0) {
	positive += 1;