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8211 :: In the JavaScript backend how to pass a array back as sequence?

• halloleo (orginal) [2021-07-08T09:53:26+02:00] view original

  I have a JavaScript function which returns an JavaScript array, e.g.

  
  function give_me_three (dummy) {
     return ["one", "zwei", "trois"]
  }
  Run

  How can I call this function in Nim? I all sorts of ways to make it work, the best (I think) is:

  
  proc give3(val: cstring): seq[cstring] {.importjs: "give_me_three(#)".}
  
  let three = give3("dummy")
  Run

  it compiles, but doesn't seem to call give_me_three in the result correctly.

  What's the best way to pass a array back as sequence?

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• xigoi (orginal) [2021-07-08T10:31:42+02:00] view original

  The code you gave seems to work correctly, and so does this:

  proc give3(val: cstring): seq[cstring] {.importc: "give_me_three".}
  Run

  What's the problem?

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• juancarlospaco (orginal) [2021-07-08T17:12:05+02:00] view original

  Code is Ok.

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• DeletedUser (orginal) [2021-07-08T18:17:34+02:00] view original

  Have you considered checking the JS code output by the compiler?

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• halloleo (orginal) [2021-07-09T04:43:48+02:00] view original

  Thanks for all the responses! It was my bad: I didn't evaluated the correct file in Nashorn. - Your assurances that the code is correct got my on the right track. :-)

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