1 Answers
Difference between Perl's $_
and @_
Variables
In Perl programming, $_
and @_
are special variables that serve different purposes:
$_
: This variable is a default input and pattern-searching space. It is used by various functions likeprint
,foreach
,sort
, etc., where no explicit variable is specified. It is commonly used as an implicit variable in many Perl operations.@_
: This variable is an array that holds the arguments passed to a subroutine in Perl. When a subroutine is called, the arguments are stored in@_
for the duration of that subroutine call. This array allows the subroutine to access and manipulate the arguments passed to it.
Understanding the usage and differences between $_
and @_
variables is crucial for effective Perl programming.
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