When it comes to naming and parsing the parameters in a perl subroutine, is there any difference between the
@ARG and @_?
2 Answers
You can increase memory consumption and slowdown regular expressions in old interpreters with implicitly exported use English; versions of match variables ($`,$',$&).
This thread will be useful.
And read more about matchvars pitfalls at:
perldoc English
perldoc perlvar
perldoc perlre
I don't know about other issues.
Short answer, no. See perlvar
- @ARG
- @_
Within a subroutine the array @_ contains the parameters passed to that subroutine. Inside a subroutine, @_ is the default array for the array operators pop and shift.
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