DamianRivas

1. This file declares a class, Player, instantiates it, and assigns it to a global player variable.
2. The Player class contains four methods:
   • constructor()
   • playPause()
   • skipTo()
   • setVolume()
3. The constructor() method sets initial values for the currentlyPlaying, playState, volume, and soundObject properties.
   • currentlyPlaying is set to the first item in album.songs.
   • The initial playState is "stopped".

• The volume is set to the number 80.

DamianRivas

The first thing I noticed is the lack of curly braces to define scope. We'll see how this difference to other languages plays out.

Printing to the console is so much easier!

String concatenation behaves the same as in JavaScript when using the `+` symbol.

It's unnecesary to use  the `return` keyword if the last line inside a method returns exactly what you intended. Still, I find using
the `return` keyword preferable with my experience in JavaScript and C++.

Ruby appears to be less syntactically verbose compared to other programming languages I've used in the past. Although, the naming

DamianRivas

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

heroku restart && heroku pg:reset DATABASE --confirm APP-NAME && heroku run rake db:migrate

DamianRivas

Serializers

Why Serialize?

API's either receive data-modifying requests (post, put, delete) or data-accessing requests (get), and in either case, their response can involve retreiving data, serializing that data into JSON, and returning it.

In Rails, this serialization could be done manually, by, say, creating a serializer method:

# User.rb
def serialize
 hash = {}

DamianRivas

library=# SELECT * FROM books;
  id  |                  title                   |       author        
------+------------------------------------------+---------------------
 1259 | Eloquent Ruby                            | Russell A. Olson
 1593 | JavaScript: The Good Parts               | Douglas Crockford
 8982 | Designing Object-Oriented Software       | Rebecca Wirfs-Brock
 7265 | Practical Object-Oriented Design in Ruby | Sandi Metz
(4 rows)

DamianRivas

const inquirer = require("inquirer");
const ContactController = require("./ContactController");

module.exports = class MenuController {
  constructor() {
    this.mainMenuQuestions = [
      {
        type: "list",
        name: "mainMenuChoice",
        message: "Please choose from an option below: ",

DamianRivas

In the wikis controller:

  index(req, res, next) {
    wikiQueries.getAllWikis((err, wikis) => {
      if (err) {
        console.error(err);
        res.redirect(500, "static/index");
      } else {
        res.render("wikis/index", { wikis });
      }

DamianRivas

include RSpec

require_relative 'hash_item'
require_relative 'hashclass'

RSpec.describe HashClass, type: Class do
  let(:lotr_movies) { HashClass.new(6) }

  describe "#index" do
    it "creates a hash key based on the string value passed in" do

DamianRivas

include RSpec

require_relative 'hash_item'
require_relative 'hashclass'

RSpec.describe HashClass, type: Class do
  let(:lotr_movies) { HashClass.new(6) }

  describe "#index" do
    it "creates a hash key based on the string value passed in" do

DamianRivas

const request = require("request");
const server = require("../../src/server");
const base = "http://localhost:3000/topics/";
const sequelize = require("../../src/db/models/index").sequelize;
const Topic = require("../../src/db/models").Topic;
const Post = require("../../src/db/models").Post;
const User = require("../../src/db/models").User;
const Comment = require("../../src/db/models").Comment;

describe("routes : comments", () => {