8 lines
242 B
Erlang
8 lines
242 B
Erlang
1> S = "". % erlang strings are actually lists, so the empty string is the same as the empty list [].
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[]
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2> length(S).
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0
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3> case S of [] -> empty; [H|T] -> not_empty end.
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empty
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4> case "aoeu" of [] -> empty; [H|T] -> not_empty end.
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not_empty
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