Hash::WithDefaults

Hash::WithDefaults is a Perl module that is designed to provide users with the ability to implement hashes that support "defaults". This feature allows users to specify several other hashes, in which the data will be looked up in case it is not found in the current hash. This can significantly improve the efficiency and accuracy of the overall process while ensuring that the data retrieval is done on a timely basis.

The SYNOPSIS of this software module entails the following steps- Firstly, the user needs to use the Hash::WithDefaults module. The next step involves initializing the main hash (%main) with the required details. Then the user can tie %h1 and %h2 with Hash::WithDefaults, which allows them to add additional default values. The tied(%h1) and tied(%h2) functions aid in linking the hash values. Finally, the user can retrieve the values by using $h1{$key}, and the value is looked up first in %h1, then in %main.

Overall, Hash::WithDefaults provides a concise and easy-to-use interface for users. Its seamless integration with Perl makes it an efficient and reliable software module to use for any hash-related work. Through this module, users can improve their data retrieval time and increase the accuracy of fetched values.