May be my question should have been which one of these is faster: dereferencing an array or a scalar.

They're about the same; almost irrelevant in any real program.

Accessing a lexical is faster than accessing a global, though the speed difference there is also almost always irrelevant.

In reply to Re^3: Pass an array reference or array indices to a subroutine? by chromatic
in thread Pass an array reference or array indices to a subroutine? by umasuresh

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