Solve the Towers of Hanoi by counting in base 2 or 3

For streamlining and automating time and invoice management in Harvest.

Using `has_cache` in your classes provides a `cached` method that allows automatic caching of the result of a method that is normally available on the class, or an instance of the class. It mitigates the hassle of creating and tracking keys as you would with the standard Cach...

Provides a DSL for implementing classes which can then be consumed to create pre-defined hashes.

A minimal, in-memory, ActiveRecord like database, backed by a Ruby Hash.

Like Factory Girl but for Hashes only

Hashematics is a configuration-based object graphing tool which can turn a flat, single dimensional dataset into a structure of deeply nested objects.

Create an SHA256 fingerprint of a hash or array.

This library offers general purpose higher-level data structures that focus on Hash manipulation.

A simple Hash to JSON serializer with some helpers to improve JSON model columns.

HashStore store RubyHash into Redis as JSON. Automatically add redis commands(GET,SET,DEL,EXITS) methods to your class. HashStore was designed to work with ActiveRecord, but also work with Non-ActiveRecord Class.

Ruby library to interact with in-memory hash database collections. Offers very little technical dependencies. In order to develop or run the tests for your application you just need ruby installed, run bundle install and you're good to go. No need to install and start your database, ...

Use the Money gem and ActiveRecord's composed_of to store fields wich contains currency data in a safe and clean way.

Simple yet customizable token generator for Rails 3

Wrapper for hate_crimes api

Gets information about stuff.

Outlier Detection with One-class SVM

Hash builder for views

Gem to process data from data.stortinget.no

If you can write a query for it, headcount can track it for you.