[erlang-questions] Can I do var-assignment in a function?
Lev Walkin
vlm@REDACTED
Wed Jul 23 14:03:13 CEST 2008
Circular Function wrote:
> extract(Str) ->
> A = string:tokens(Str," ").
> lists:sort(A).
>
> I could of course do this:
> lists:sort(string:tokens(Str," ")).
>
> But lets say I want a bigger function that slo includes some deeper
> function calls, lets say 4-5
> calls deep.
>
> That's the main thing I dislike about functional programming, it is very
> expressive but sometimes it is hard afterwards to follow what a function
> does and it is hard hwen you have to read what is happening from right
> to the left.
> It is easier to reason about when I can split into several calls.
>
> I guess it is doable but I can't figure out the syntax.
Use comma.
extract(Str) ->
A = string:tokens(Str," "),
lists:sort(A).
That's it.
--
vlm
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