CoffeeScript Hubot帮助：从函数获取数据

Question

我是新手，需要一些Hubot / CoffeeScript帮助。

我有几个响应，这些响应将从同一个源获取数据，但是使用并响应不同的负载。 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

为得分数据构建URL的过程包括查找当前的月，日和年。 我不想重复做一次，但是我会收到很多类似的使用相同数据的响应。 我以为我可以做到这一点。

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'

我猜这是行不通的，因为它是异步的。 但是，从getScore函数中执行msg.send不起作用。 因此，我该如何做而不必在每个robot.hear部分中重复getScroe代码？

谢谢！

Answer 1

伪代码：

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