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Perl Hashes (a.k.a Associative Arrays or Maps)

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Introduction

Hashes (also known as "associative arrays", or in other languages "maps" or "dictionaries") allow the programmer to map arbitrary strings to arbitrary values. Perl has a convenient syntax to support hashes as first order data structures.

Tutorials

The Hash Cookbook

This is a presentation (in OpenDocument format) about hashes by "Jerusalem Perl Monger" that was given by her at the Israeli Perl Workshop of 2007 . It covers the main uses for hashes, with many code excerpts.

Modern Perl (the Book)

Chapter 3 of Modern Perl discusses hashes.

Beginning Perl

Chapter 3 of "Beginning Perl" discusses hashes.

Perl for Perl Newbies Series

The second talk in the series discusses hashes.

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