leandromoreira

function makelist(x) {return [x]}

makelist(document.head[0])
makelist("DKC:TF")
makelist("6502")
makelist(0xf13e455d7a1b96cd2d930e578284d889)

leandromoreira

var printNumbers = () => {
  [1,2,3].forEach((number) => console.log(`Hello, ${number}`))
}

printNumbers()

leandromoreira

var print = (list) => {
  list.forEach((number) => console.log(`Hello, ${number}`))
}

print([1,2,3])
print(["D","K","C"])

leandromoreira

var print = (list) => {
  list.forEach((item) => { 
    // naming become harder :(
    var itemDescription
    if (typeof item === "object") {
      itemDescription = item.name
    } else {
      itemDescription = item
    }
    console.log(`Annyong, ${itemDescription}`)

leandromoreira

var print = (list) => {
  list.forEach((item) => { 
    var itemDescription
    if (typeof item === "object") {
      itemDescription = item.name || item.brand
      if (item.arch) {
        itemDescription = `${item.name} - ${item.arch}`
      }
    } else {
      itemDescription = item

leandromoreira

var defaultPrint = (item) => console.log(`Hello, ${item}`)
var myForEach = (list, printFunction = defaultPrint) => {
  list.forEach((item) => printFunction(item))
}

myForEach([1,2,3])
myForEach(["D","K","C"])
myForEach([{name: "Tomba!"},{name: "Neo Cortex"}], (person) => defaultPrint(person.name))
myForEach([{brand: "Ferrari"}, {brand: "Mercedes"}], (car) => defaultPrint(car.brand))
myForEach([{name: "N64", arch: "MIPS"}, {name: "3DS", arch: "ARM9"}], (console) => defaultPrint(`${item.name} - ${item.arch}`))

leandromoreira

rails new myapp --skip-active-record

leandromoreira

# we'll use an existent image which already have ruby installed
FROM ruby:2.3.0
# creating our app folder
RUN mkdir /myapp
# move to this folder
WORKDIR /myapp
# move the Gemfile to our app's root folder
ADD Gemfile /myapp/Gemfile
# move the Gemfile.lock too
ADD Gemfile.lock /myapp/Gemfile.lock

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# we'll call our web app of web
web:
  # it'll build this container based the docker file ./Dockerfile
  build: .
  # it'll run this command to star the server
  command: bash -c "rm -f tmp/pids/server.pid || true && bundle exec rails s -p 3000 -b '0.0.0.0'"
  # it'll export the port 3000
  ports:
    - "3000:3000"
  # it links to db container (on mongoid.yaml at rail's config we say host: db:27017 it's linked)

leandromoreira

# we'll build our container from an existent image :)
FROM nginx
# for some reason we need to create this folder 
RUN mkdir -p /var/lib/nginx/proxy
# copy our app config to nginx
COPY sites-enabled/myapp.conf /etc/nginx/nginx.conf