Is there a command in Haskell which displays (or get as a list of) all the user defined functions which have been loaded/defined in the GHCi? Thanks
To see bindings you've made at the ghci prompt (e.g. with let or <-), try :show bindings.
If you've loaded some modules, you can use :show modules to get the names of loaded modules and then :browse ModuleName to list everything in scope from that module.
When in ghci, use :browse or just :bro after loading the file. You may also browse unloaded modules via :browse Foo.Bar.Baz.
来源：https://stackoverflow.com/questions/10272094/haskell-display-get-list-of-all-user-defined-functions