随笔分类 - Compose
摘要：Let's say we have two fucntions: const toUpper = s => s.toUpperCase(); const exclaim = s => `${s}!`; We want to combine those. But function itself doe
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摘要：We want to write a Monoid, which able to take function called 'run', therefore we able to run a serial of functions together to get a combined result.
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摘要：Much of our code in real life is full of if statements that check the validity of a given input to see if a given computation should be performed. Usi
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摘要：For example we have a feature reducer like this: First of all, we can replace 'swtich' statement with normal Object: In case of ´actionReducer[type]´
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摘要：Sometimes I am confused with 'liftA2' and 'converge' functions. Main difference between those is that: liftA2 takes applicative functor as second and
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摘要：We have State like this: We want to validate user's input is the same as 'hint' and it matchs 'id' in cards array. Then we want to set 'isCorrect' to
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摘要：ReaderT is a Monad Transformer that wraps a given Monad with a Reader. This allows the interface of a Reader that enables the composition of computati
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摘要：Crocks.js has the implementation, no need to do it yourself. https://evilsoft.github.io/crocks/docs/functions/logic-functions.html#implies
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摘要：succ :: Doing N + 1 times fn. add :: Doing N times succ, based on K mult :: is B pow :: or Thrush, is flip isZero :: return just T otherwise K(F) , K
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摘要：/** * When */ const _branch = (x) => { const result = (x && x.isPublic) ? dissoc('private', x) : x; console.log(result); return assoc('result', 'done', result); } const ...
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