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Null object: Difference between revisions
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[Erlang] Format cleanup, improve wording.
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=={{header|Erlang}}==
Erlang does not have an
Example alternatives:
# Something like <pre>{ok, 3} % normal case</pre> or <pre>{err, no_more} % error case</pre> on error.
# Don't ever allow an undefined return value, and throw an exception instead.
# Return an atom:
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Atoms are erlang's user-defined constants that always evaluates to is itself. It is also equal to no other value else but itself.
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