[erlang-questions] pattern matching & map

[Michał Muskała]

In OTP 21 you could use the map_get/2 guard:

add_prms([{Name, Val}|T], Prms) when map_get(Name, Prms) =:= Val ->

Michał.
On 26 Nov 2018, 10:57 +0100, Oleg <lego12239@REDACTED>, wrote:
> Hi, all.
>
> I try to do the pattern matching in a function definition with maps:
>
> add_prms([{Name, Val}|T], #{Name := Vals} = Prms) ->
>
> But erlc says me:
>
> variable 'Name' is unbound
>
> Is this is not supported yet?
>
> Erlang/OTP 20
>
> --
> Олег Неманов (Oleg Nemanov)
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