Question

yesterday @SuperSkunk soved this little problem for me: How to return settings from an object

I had this setup to retrieve values from stored settings:

myProject =

 settings:
  value1: one
  value2: two
  value3: three

 getSetting: (key) ->
  @settings[key]

So when i call getSetting('value1') i get one.

How can I change the code to pass n-Arguments to get n-Values? Thank you in advance!

Answer 1

You can use a splat and list comprehensions:

getSetting: (keys...) ->
   (@settings[key] for key in keys)

Now if you call getSettings 'value1', 'value2' the result is the array ['one', 'two'].

To “return as they are” means probably simply to destructure on receiving the values

so taking the above example on the caller side you do

[value1, value2] = getSettings "value1", "value2"