当有fmap时，Haskell中的地图点是什么？

问题描述

我试过的每个地方都使用 map ， fmap 。为什么Haskell的创建者觉得需要一个 map 函数？难道它不是目前所知的 fmap 和 fmap 可以从语言中删除吗？

解决方案

我想提出一个答案，以引起对

Haskell 98被一些Haskellers看作是倒退了一步包括我），以前的版本已经定义了一个更抽象和更一致的库。哦，好。

Everywhere I've tried using map, fmap has worked as well. Why did the creators of Haskell feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language?

解决方案

I would like to make an answer to draw attention to augustss's comment:

Haskell 98 is seen as a step backwards by some Haskellers (including me), previous versions having defined a more abstract and consistent library. Oh well.

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