On a similar note, I’ve always liked the idea of being able to mark functions as... | Hacker News

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		halo 20 days ago \| parent \| context \| favorite \| on: John Carmack on mutable variables On a similar note, I’ve always liked the idea of being able to mark functions as pure (for some reasonable definition of pure). The principle of reducing state changes and side-effects feels a good one.

jlmcgraw 20 days ago [–]

For what it's worth, I was experimenting with this idea for Python (in an almost completely vibe-coded fashion) here: https://github.com/jlmcgraw/pure-function-decorators

Whether it's of any actual utility is debatable

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