Slicing hashes

| Perl | 1 Comment

An elegant way to mix and match hash entries is by using the technique of hash slices. For example, let's just say that you have defined the following hash:

my $config = {
  firstname => 'Joseph',
  lastname => 'Smith',
  user => 'pickle',
  ...
  database => 'fruits',
  password => 'z4KLf3&3z',
  ...
  host => 'zeta.demon.nl',
};

Suppose that you are only interested in the hash-keys related to the database stuff. Then you can use the following fancy one-liner:

my ($dbhost, $dbdatabase, $dbuser, $dbpassword) =
  @$config{ qw( host database user password ) };

As the saying goes, there is always more than one way to do it with Perl. Pretty neat stuff, wouldn't you say?

Random entries

Here are some random entries that you might be interested in:

Recent Assets

  • 2023-09-24-jong-tegen-oud-1.jpg
  • 2023-09-24-jong-tegen-oud-2.jpg
  • just-call-me-fred.png
  • foggy-morning.png
  • oma-2023-07-27.jpg
  • i-almost-died.png
  • chipping-from-twenty-meters.png
  • de-koepel.png
  • screenshot-www.udemy.com-2023.05.18-10_02_39.png
  • screenshot-www.golf.nl-2023.05.08-09_57_30.png
  • IMG-20230423-WA0000.jpg
  • me-and-my-radio-paradise-hat.png

Recent Comments

Golf Handicap

Information

This personal weblog was started way back on July 21, 2001 which means that it is 7-21-2001 old.

So far this blog contains no less than 2498 entries and as many as 1877 comments.

Important events

Graduated from Stanford 6-5-1979 ago.

Kiffin Rockwell was shot down and killed 9-23-1916 ago.

Believe it or not but I am 10-11-1957 young.

First met Thea in Balestrand, Norway 6-14-1980 ago.

Began well-balanced and healthy life style 1-8-2013 ago.

My father passed away 10-20-2000 ago.

My mother passed away 3-27-2018 ago.

Started Gishtech 04-25-2016 ago.