manoelneto

# Controller 

SendEmailToUser.perform_async user.id

# ...

class SendEmailToUser
  include Sidekiq::Worker
  sidekiq_options :queue => :default, :retry => true, :backtrace => true

manoelneto

// Loading provider
const LoadingContext = React.createContext({
  pushLoading: () => {},
  removeLoading: () => {},
})

class LoadingProvider extends Component {

  state = {
    loadingCount: 0

manoelneto

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manoelneto

const PostList = ({posts}) => (
  posts.map(post => <Post post={post} />)
)


class App extends Component {
  state = {
    posts: []
  }

manoelneto

const PostList = ({posts}) => (
  posts.map(post => <Post post={post} />)
)


class PostPage extends Component {
  state = {
    posts: []
  }

manoelneto

const PostList = ({posts}) => (
  posts.map(post => <Post post={post} />)
)


class PostPage extends Component {
  state = {
    posts: [],
    category: ""
  }

manoelneto

import memoize from "memoize-one"

const PostList = ({posts}) => (
  posts.map(post => <Post post={post} />)
)


class PostPage extends Component {
  state = {
    posts: [],

manoelneto

def update_associated_rubrics
  updateable_rubrics.in_batches(of: 100).each do |relation|
    relation.transaction do
      relation.lock.each do |rubric|
        rubric.update_learning_outcome_criteria(self)
      end
    end
  end
end

manoelneto

// coisas que a gente pode fazer com listas
// verificar a lista tem algum elemento
// filtrar elementos da lista
// transformar a lista em outra lista


// verificar a lista tem algum elemento

function elementoNaLista(lista, elemento) {
  var resultado = false