Perl 5 Reference Assignments : Reference « Data Type « Perl






Perl 5 Reference Assignments

   

Data Type            Operator                 Example
Scalar               \$var                    $car = \$Porsche;

Array                \@array                  $allStores[$number] = \@storeInventory;

Hash                 \%hash                   $storeType = \%stores;

File handle          \*FILEHANDLE             $inputReference = \*STDIN;

Constant             \literal                 $pi = \3.4;

Subroutine           \&subRoutine             $callBack = \&numericSort;

Symbolic             \$variableName           $var ="var2"; $var2Ref = \$var;

   
    
    
  








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1.Perl 5 Dereferencing Operators
2.Reference is a scalar variable
3.Increments Reference
4.Nested reference
5.References to references
6.References, Pointers
7.Creating and Dereferencing Pointers
8.Creating and dereferencing a reference
9.Creating reference for arrays
10.Demonstrates the reference syntax
11.Dereference pointer
12.Dereferencing a Reference
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