- values HASH
Returns a list consisting of all the values of the named hash. (In a scalar context, returns the number of values.)
The values are returned in an apparently random order. The actual
random order is subject to change in future versions of perl, but it
is guaranteed to be the same order as either the keys
or each
function would produce on the same (unmodified) hash. Since Perl
5.8.1 the ordering is different even between different runs of Perl
for security reasons (see "Algorithmic Complexity Attacks" at perlsec).
As a side effect, calling values() resets the HASH's internal iterator, see "each". (In particular, calling values() in void context resets the iterator with no other overhead.)
Note that the values are not copied, which means modifying them will modify the contents of the hash:
for (values %hash) { s/foo/bar/g } # modifies %hash values for (@hash{keys %hash}) { s/foo/bar/g } # same