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**Problème :**
Le register.json ne se créé pas complètement. Il manque beaucoup d'applications, les utilisateurs ne retrouvaient pas leur historique.
**Résolution**
Pour résoudre le problème,…
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Creating this issue to investigate how we could make Kefir compatible with the [Fantasy Land Specification](https://github.com/fantasyland/fantasy-land).
I think of two possibilities: add Fantasy Lan…
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P137页第二段：
需要注意的是，很多新手会误认为（< * ) :: f a -> f b -> f a 和const函数一样，就直接忽略第二个参数。。。。。。。。。。。。。
Nothing
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## 📖 Documentation
I'm used to using this package and `monocle-ts` together to enable me to traverse over arrays. Typically I do `const itemTraversal = fromTraversable(array)()` to construct the tr…
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When performing TSDB query, in case of discovered duplicates, the existing code can either log a warning and discard the oldest entry OR throw an exception (depending on whether the "fix_duplicates" f…
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~/Haskell/bytestring$ cd ~/tmp/
~/tmp$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.0.1
~/tmp$ cabal --version
cabal-install version 1.24.0.0
compiled using version 1.24.0.…
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```haskell
defaultimap ::
Representable f => (Rep f -> a -> b) -> f a -> f b
defaultimap f fa = tabulate (f index fa)
```
proves that we can (modulo package issues) use
```haskell
class …
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Trying to deserialize a null value into an option produces an obj expected value (json type mismatch). The behavior should be consistent whether the value is null or doesn't exist, but that's not the …
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This code compiles:
```haskell
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE TypeFamilies …
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Stephen Diehl wrote in [The Joy and Agony of Haskell in Production](http://www.stephendiehl.com/posts/production.html):
\begin{quote}
**Consider rolling an internal prelude**. As we’ve all learned t…