Null object: Difference between revisions
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([Erlang] Explain lack of undefined value. Show alternatives.) |
m ([Erlang] Fix atom list.) |
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# Don't ever allow an undefined return value, and throw an exception instead. |
# Don't ever allow an undefined return value, and throw an exception instead. |
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# Return an atom: |
# Return an atom: |
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## undefined* |
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## undef |
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## null |
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## nil |
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## none |
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* Often used by records as an initial value and the stdlib module. |
* Often used by records as an initial value and the stdlib module. |
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