Union Find is an algorithm that uses a disjoint-set data structure. It allows us to efficiently connect any items of a given list and to efficiently check whether two items of this list are connected (any degree of separation) or not.

This is a union_find_tree library. It is used for connecting and grouping items. you can connect any object

Ruby wapper for Unionpay's Open API.

UPOP and UPMP SDK

Allows easy creation of immutable union values, a.k.a. sum-types. Example: APICallResult = UnionValue.new(:success, :failure, :timeout) APICallResult.failure.is_failure? #=> true APICallResult.timeout.is_success? #=> false APICallResult.success(12345).data #=> 12345

Simple and straightforward config & cli options parser library

A command-line tool for managing Unity packages

Generate a unique, random token for ActiveRecord models.

Like uniq -c for ruby arrays

Find first uniq character in a string

A distributed unique ID generator inspired by Twitter's Snowflake.

Add an uniq identifier on your models

Adds entries to a logfile, only if they don't already exist. The logfile can be on a remote server

Add to your models an easily way to generate uniq numbers

Generate a unique, random token for Active Record.

Prevents a block from returning the same object twice.

Check uniqueness across models

Easily set ActiveRecord attributes to auto-generate as unique values from a given proc.

A Rails validator for uniqueness by date.

ActiveRecord, MongoMapper and general tools for generating unique values e.g. api keys and tokens.