perldata:
If you’re confused about why you use an ’@’ there on a hash slice instead of a ’%’, think of it like this. The type of bracket (square or curly) governs whether it’s an array or a hash being looked at. On the other hand, the leading symbol (’$’ or ’@’) on the array or hash indicates whether you are getting back a singular value (a scalar) or a plural one (a list).
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In reply to Re^6: Effecicncy of key-only hash by ysth
in thread Effecicncy of key-only hash by brycen

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