Returns from a subroutine,
sort block or regex eval block (but not a
map block) with the value given in EXPR. Evaluation of EXPR may be in list, scalar, or void context, depending on how the return value will be used, and the context may vary from one execution to the next (see
wantarray). If no EXPR is given, returns an empty list in list context, the undefined value in scalar context, and (of course) nothing at all in void context.
Unlike most named operators, this is also exempt from the looks-like-a-function rule, so
return ("foo")."bar" will cause
"bar" to be part of the argument to