Passing parameters to subroutines

   

# Perl places all the parameters into an array named @_.

# You can access this array directly with the @_ syntax, or access individual parameters. 

#!/usr/bin/perl -w

$value = add(5, 6);
print "Value from add=$value.\n";

$value = add(25, 1);
print "Value from add=$value.\n";

sub add {
    my($a, $b) = @_;

    my($sum) = $a + $b;

    return $sum;
}

1.	Swap array value by using the sub range
2.	Passing Arrays
3.	Pass file handle global reference to a subroutine
4.	Pass reference to a subroutine to another subroutine
5.	Pass two array reference to a subroutine
6.	Passing an array and modifying it,as a reference
7.	Passing by reference with pointers
8.	Passing References to a Subroutine
9.	Passing a range of value to a subroutine
10.	Passing array to a subroutine
11.	Passing arrays to a function
12.	Passing different number of parameter to a subroutine
13.	Passing hash to a subroutine
14.	Passing two values to a subroutine
15.	displays all the arguments
16.	Using shift(@_) to get value passed into a subroutine
17.	shift parameter
18.	Subroutine parameter default value
19.	output the subroutine arguments using special variable @_
20.	Is a parameter defined
21.	The loop displays each individual argument

Passing parameters to subroutines : Parameter « Subroutine « Perl

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