[erlang-questions] The reason for filename:join/1 behaviour?

[Dmitrii Dimandt]

Hi all,

What is the reason behind filename:join/1's behavior? From the docs:

Joins a list of file name Components with directory separators. If one of
the elements of Components includes an absolute path, for example "/xxx",
the preceding elements, if any, are removed from the result.

That is,
> filename:join(["/usr", "/local"]).
"/local"
> filename:join(["/usr", "local"]).
"/usr/local"


Why? :)
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