Dereferencing a Reference : Reference « Data Type « Perl






  1. Perl
  2. Data Type
  3. Reference

Dereferencing a Reference

   

    #!/usr/local/bin/perl -w

    # Set up the data types.
    my $scalarVar = "Tom was here.";
    my @arrayVar = qw (Sunday Monday Tuesday Wednesday Thursday Friday Saturday);
    my %hashVar = ("Toronto" => "East", "Calgary" => "Central", "Vancouver" => 'West');

    # Create the references
    my $scalarRef = \$scalarVar;
    my $arrayRef = \@arrayVar;
    my $hashRef = \%hashVar;

    # Print out the references.
    print "$scalarRef \n";
    print "$arrayRef \n";
    print "$hashRef \n";








Related examples in the same category

1.Perl 5 Dereferencing Operators
2.Perl 5 Reference Assignments
3.Reference is a scalar variable
4.Increments Reference
5.Nested reference
6.References to references
7.References, Pointers
8.Creating and Dereferencing Pointers
9.Creating and dereferencing a reference
10.Creating reference for arrays
11.Demonstrates the reference syntax
12.Dereference pointer
13.Dereferencing the Pointer
14.Direct Reference Techniques
15.Direct Scalar References
16.Exchange reference
17.Get a reference to a file handle by using '$ioreference = *name{IO};'
18.Get reference of a range
19.Get the reference of the return value from substr
20.Get the reference to a scalar by using the form '$scalarreference = *name{SCALAR};'
21.Get the reference to a subroutine by using the form '$codereference = *name{CODE};'
22.Get the value from a reference
23.A reference is a scalar variable pointing-or refering to-something else
24.Reference Modification
25.Using $$ to get the value of the reference