Perl Programming Question: Download Questions PDF
Does Perl have reference type?
Answers:
Answer #1Yes. Perl can make a scalar or hash type reference by using backslash operator.
For example
$str = "here we go"; # a scalar variable
$strref = $str; # a reference to a scalar
@array = (1..10); # an array
$arrayref = @array; # a reference to an array
Note that the reference itself is a scalar.
For example
$str = "here we go"; # a scalar variable
$strref = $str; # a reference to a scalar
@array = (1..10); # an array
$arrayref = @array; # a reference to an array
Note that the reference itself is a scalar.
Answer #2Yes.
EX:
##need backslash to the operator
my $var = 6767;
my $ref = $var;
print "The reference of $var is $ref";
EX:
##need backslash to the operator
my $var = 6767;
my $ref = $var;
print "The reference of $var is $ref";
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