Difference between revisions of "Keyword arguments"

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"We show the Haskell implementation of keyword arguments, which goes
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well beyond records (e.g., in permitting the re-use of labels). Keyword
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arguments indeed look just like regular, positional arguments. However,
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keyword arguments may appear in any order. Furthermore, one may
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associate defaults with some keywords; the corresponding arguments may
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then be omitted. It is a type error to omit a required keyword argument.
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The latter property is in stark contrast with the conventional way of
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emulating keyword arguments via records."
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[http://okmij.org/ftp/Haskell/types.html#keyword-args Genuine keyword arguments]
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[[Category:Idioms]]

Latest revision as of 15:18, 6 February 2021

"We show the Haskell implementation of keyword arguments, which goes well beyond records (e.g., in permitting the re-use of labels). Keyword arguments indeed look just like regular, positional arguments. However, keyword arguments may appear in any order. Furthermore, one may associate defaults with some keywords; the corresponding arguments may then be omitted. It is a type error to omit a required keyword argument. The latter property is in stark contrast with the conventional way of emulating keyword arguments via records."

Genuine keyword arguments