Add a Hash#deep_reject! method

Make consistent hashcodes from flat Hashes, regardless of key ordering. Useful for hashing rows in a table.

A utilitarian lib to extract data from complex Hashes using String path with recursions

Sample/test hashdot launched daemon packaged as gem.

Hash attributes using SHA512 (or your custom hash strategy). Works with and without ActiveRecord.

Hash extensions without monkey patching

Simple hash filter

define schemas as a hash, and validate hashes!

HashidsUri turns your sequentially generated id in the URL into a Hashid see **hashids.org**.

Easy way to map hashes

Automatic strong parameter detection with Hashie and Rails 4.

Automatically extracts Hash parameters into formal parameters

hash-param allows you to declare, validate, and transform endpoint parameters as you would in frameworks like ActiveModel or DataMapper without the overhead. This gem is a variation of the sinatra-param gem https://github.com/mattt/sinatra-param modified to be more generic and with some additional features

Threadsafe namespaced Queue with locking capabilities.

HashStruct provides an object based on Hash, but acts like Struct (or OpenStruct), providing helpful accessors for each key from the get-go. It also magically parses string values when it can (eg, dates, URIs, numbers, and does so recursively.

Simple Hashtag recognition for strings

Rails engine to facilitate inline text hashtags.

Easy urls on social networks hash tags

Ruby Hash utility methods , refer README and test cases

The hashy_validator gem provides the HashyArrayValidator, a custom Active Model validator designed to validate arrays of hashes within ActiveRecord model attributes. Utilizing the HashValidator gem, on top of hash_validator gem. The gem includes a comprehensive test suite using the minitest framework.