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9550 :: Has 'IsNullOrEmpty' been deprecated?

• chikegar (orginal) [2022-10-25T18:24:40+02:00] view original

  I see a hint of an explanation at the very bottom of this page on StackOverflow, but no official explanation that I can find on Nim's forum or website:

  "There's no longer any such proc because sequences can no longer be nil. – Jim Balter Jun 15, 2020 at 7:25"

  https://stackoverflow.com/questions/48657243/how-to-test-for-an-empty-seq-in-nim

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• Yardanico (orginal) [2022-10-25T18:28:29+02:00] view original

  There's no real need for a specific explanation, it's just that in old Nim versions strings and sequences were nil by default (not just empty), so there was a specific proc. Just like the commenter in the SO post said, you can just check for the length now.

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• chikegar (orginal) [2022-10-25T19:19:08+02:00] view original

  I'm sorry, I can't seem to find a reference to the proc 'IsNullOrEmpty' in the page you shared: https://nim-lang.org/blog/2018/09/26/version-0190-released.html

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• DeletedUser (orginal) [2022-10-25T20:19:42+02:00] view original

  It's isNilOrEmpty. It was deprecated and later on removed. It's in the 1.0.6 docs as a deprecated proc but not in the 1.2.0 docs. Also isNilOrWhitespace was deprecated in the 1.2 docs and removed in 1.4 as mentioned in the 1.4 changelog. So only isNilOrEmpty was emitted from the changelog.

  Nowadays the changelog tends to be considered more so this problem hopefully shouldn't be encountered as much.

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• sls1005 (orginal) [2022-10-26T18:12:28+02:00] view original

  isNil for seqs and strings can still be found in the documentation, but marked as {.error.}.

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• chikegar (orginal) [2022-10-26T23:03:55+02:00] view original

  As you can tell, my C# training is tripping me up. Thanks for the clarification everyone! Cheers!

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