在GHCI中，有没有办法看到模块中的功能列表？ [英] Is there a way to see the list of functions in a module, in GHCI?

问题描述

在Python或Common Lisp中，我发现它可以在运行时列出库的内容。 Haskell具有相同的功能，特别是GHCI提示符？

I find it handy in Python or Common Lisp that you can list a library's contents at runtime. Does Haskell have the same thing, in particular from a GHCI prompt?

推荐答案

GHCi有一个：浏览命令列出模块的内容：

GHCi has a :browse command to list the contents of modules:

Prelude> :browse Data.List
(\\) :: (Eq a) => [a] -> [a] -> [a]
delete :: (Eq a) => a -> [a] -> [a]
deleteBy :: (a -> a -> Bool) -> a -> [a] -> [a]
deleteFirstsBy :: (a -> a -> Bool) -> [a] -> [a] -> [a]
elemIndex :: (Eq a) => a -> [a] -> Maybe Int
...
Prelude> :help                    
...
   :browse[!] [[*]<mod>]       display the names defined by module <mod>
                               (!: more details; *: all top-level names)
...

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