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How to delete some hash entries in Perl
okwudili onyejiaku
Overview
The delete() method in Perl is used to delete the specified keys along with their associated value from a hash.
Syntax
The syntax of the delete() method is given below:
delete(hash(key))
Parameters
hash: This is the hash instance we want to delete some entries from.
key: This is the key that gets deleted along with its corresponding value.
Return value
The value returned is the value of the key that was deleted.
Code example
# create a Hash value
%hash1 = ("Google" => "G",
"Netflix" => "N",
"Amazon" => "A",
"Apple" => "A",
"Meta" => "M"
);
# delete some entries
$deletedValue1 = delete($hash1{"Google"});
$deletedValue2 = delete($hash1{"Meta"});
# print deleted elements
print "$deletedValue1\n";
print "$deletedValue2";Delete some hash entries in Perl
Code explanation
- Line 2: We create a hash value.
- Lines 10–11: We delete some entries from the hash we created, using the
deletemethod. - Lines 14–15: We print the deleted elements to the console.
RELATED TAGS
hash
delete()
perl
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okwudili onyejiaku
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