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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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7
Task/Dynamic-variable-names/Perl/dynamic-variable-names-1.pl Normal file
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print "Enter a variable name: ";
$varname = <STDIN>; # type in "foo" on standard input
chomp($varname);
$$varname = 42; # when you try to dereference a string, it will be
# treated as a "symbolic reference", where they
# take the string as the name of the variable
print "$foo\n"; # prints "42"

9
Task/Dynamic-variable-names/Perl/dynamic-variable-names-2.pl Normal file
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use strict;
print "Enter a variable name: ";
my $foo;
my $varname = <STDIN>; # type in "foo" on standard input
chomp($varname);
my $varref = eval('\$' . $varname);
$$varref = 42;
print "$foo\n"; # prints "42"