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Currently there are functions
```haskell
mapKeys :: (Ord k) => (j -> k) -> Map j a -> Map k a
traverse :: (Applicative f) => (a -> f b) -> Map k a -> f (Map k b)
```
but nothing of the type `(Ap…
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It's not entirely clear the best way to integrate `AnnotatedException` into a code base.
As [Shea notices](https://twitter.com/shlevy/status/1501506518931357702), this stuff is all one-way. Once an…
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[Front-End interview questions · Front-End Developer Handbook 2018](https://frontendmasters.com/books/front-end-handbook/2018/practice/interview-q.html)
[Twipped/InterviewThis: An open source list …
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I was working on making a module called serversession compatible with the new persistent.
[updated: LTS: 19 by ncaq · Pull Request #27 · yesodweb/serversession](https://github.com/yesodweb/serverse…
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TH doesn't support types with nonlinear or multiplicity-polymorphic fields, which leaves users to do everything by hand for these types, using the (in progress) type
```haskell
data MP1 :: forall …
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Consider adding support for common Markdown variants to Noteworthy.
## MathPix Markdown ("LaTeX-flavored markdown")
The MathPix OCR tool is also associated with a file format called MathPix Ma…
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This issue is quite meta. But I think it's important to understand what is going on. Is goal just to make random not terribly inefficient and use better PRNG? Is it to create new generic API for worki…
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Groundhog's encoding of foreign keys makes relationships between tables typesafe; the price to pay is yaml parsing (which depends on a c library), code generation with template haskell, and injecting …
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Encountered right away that the `{Eq, Ord, Typeable, Data, Hashable}` instances are needed.
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P.S.
https://github.com/haskell-nix/hnix/issues/880
Planning to use the `Acc` for HNix at the …
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Articles that can be useful in the future.