CoffeeScript Hubot幫助：從函數獲取數據

Question

我是新手，需要一些Hubot / CoffeeScript幫助。

我有幾個響應，這些響應將從同一個源獲取數據，但是使用並響應不同的負載。 例如...

module.exports = (robot) ->
    robot.hear /score/i, (msg) ->
        score = getScore(today)
        msg.send "today's score is " + score
    robot.hear /yesterday's score/i, (msg) ->
        score = getStore(yesterday) ->
        msg.send "yesterday's score was " + score

為得分數據構建URL的過程包括查找當前的月，日和年。 我不想重復做一次，但是我會收到很多類似的使用相同數據的響應。 我以為我可以做到這一點。

getScore = (day) ->
    #build the url and get the data set
    #pick the right piece of data based on the day variable and assign it to score'

我猜這是行不通的，因為它是異步的。 但是，從getScore函數中執行msg.send不起作用。 因此，我該如何做而不必在每個robot.hear部分中重復getScroe代碼？

謝謝！

Answer 1

偽代碼：

getScore = (day, callback) ->
      # get the score...
      callback(score)


robot.hear /yesterday's score/i, (msg) ->
    getScore "yesterday", (score) ->
        msg.send "yesterday's score was " + score