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if ($xxx or $yyy) {} value should be dropped
context () is not compatible with context bool
if ($xxx and $yyy) {} value should be dropped
context () is not compatible with context bool
$xxx && yyy(); value is dropped
`xxx`; value is dropped
/(.*)/; value is dropped
'xxx'; value is dropped
'xxx' if $xxx; value is dropped
map { xxx($_) } @l; if you don't use the return value, use "foreach" instead of "map"
$xxx = chomp; () context not accepted here
context () is not compatible with context scalar
$xxx = push @l, 1 () context not accepted here
context () is not compatible with context scalar
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