Asynchronous node, beloved, no result is passed from the function?

Question

JavaScript

Guys, take a look at the code, please, I’ve been fighting for 3 hours, with the node while on you, I can’t cope with this asynchrony, I can’t figure out how to issue an object from the function:

parserGame = (game) ->

  link = game.link
  name = game.name

  resultOneGame =
    name: ''
    days: []

  needle.get link, (err, res) ->
    if !err && res.statusCode == 200

      allDate = []

      $ = cheerio.load(res.body)

      defaultGame = []
      $('.boxesDay').find('.boxes').find('td.box').find('span.time').contents().each ->
        defaultGame.push(this.data.substring(0,5))


      $('.col-header').each ->

        if $(this).parent().hasClass('time') == false

          dayGame =
            date: ''
            game: []

          dayGame.date = $(this).text().slice(0,8)



          defaultGame.forEach (item, i) ->
            arr = [item]
            dayGame.game[i] = arr
            # dayGame.game[i].playd = false

          i = 0


          $(this).next().find('td.box').each ->

            if $(this).hasClass('reserveding')

              obj =
                playd: true

              dayGame.game[i].push(obj)



            $(this).find('span.cell').each ->

              $(this).find('input').each ->

                dayGame.game[i].push(this.attribs.value)
            i++

          # Правильно
          allDate.push(dayGame)

      resultOneGame.name = name
      resultOneGame.days = allDate

      # console.log resultOneGame ----- ВОТ ЗДЕСЬ ВСЕ ЕСТЬ
      return resultOneGame


  return resultOneGame ----- ВОТ ТУТ УЖЕ НЕТ

Answer 1

return resultOneGame ----- HERE IS NOT HERE

It will be right here YET! Because at this point, the function passed to needle.get hasn't even started executing yet. There are many solutions.
I'm not friends with CS, so examples in JS:
1) Classic

function parserGame(game, callback) {
..............
if (err || res.statusCode != 200)
  return callback(new Error());
...............
// console.log resultOneGame ----- ВОТ ЗДЕСЬ ВСЕ ЕСТЬ
return callback(null, resultOneGame);
  }
};

function callback(error, resultOneGame) {
 // получаем результат
}

2) Promise

function parserGame(game) {
  return new Promise(reject, resolve) {
  .................................
  if (err || res.statusCode != 200)
    reject(new Error());
  ................................
  // console.log resultOneGame ----- ВОТ ЗДЕСЬ ВСЕ ЕСТЬ
  resolve(resultOneGame);
  }
}

parserGame(game).then(function(resultOneGame) {
// получаем результат
}).catch(function(err){});

Answer 2

Read about context, scopes and asynchronous flow in javascript.
Then you will get an answer to your question.

Answer 3

Anton tell me please... I'm calling a function... everything is in callBacke. Happened. BUT the dog is like this when the function is called, the result is given ->

PassThrough {
  _readableState: 
   ReadableState {
     objectMode: false,
     highWaterMark: 16384,
     buffer: BufferList { head: null, tail: null, length: 0 },
     length: 0,
     pipes: null,
     pipesCount: 0,
     flowing: null,
........................................................................

and should return an object

getResultOneGame = (error, resultParse) ->
  console.log resultParse
  return resultParse

the call goes naturally to the main function ..... Ppstst
Although I created test functions, passing the application structure, everything is buzzing.