16 lines
436 B
Perl
16 lines
436 B
Perl
#!/usr/bin/perl
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use strict;
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use warnings;
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use Hash::Util qw(lock_keys unlock_keys lock_hash unlock_hash lock_value unlock_value);
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my %hash1=(one =>'first', two=>'second', three=>'third');
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lock_keys(%hash1);
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unlock_keys(%hash1);
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my %hash2;
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lock_keys(%hash2,'one','two','six');
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lock_value(%hash2,'one');
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lock_value(%hash2,'two');
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unlock_value(%hash2,'two'); |