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Articles related to key/value pairs

Storing Key/Value Pairs in Ruby - Structs and OpenStructs - About.com
Storing key/value pairs in Ruby doesn't always need to be accomplished by using a hash. You can also use the Struct and OpenStruct classes.
http://ruby.about.com/od/rubysbasicfeatures/f/structs.htm
How to Create and Use Hashes in Ruby - About.com
A hash is useful to store what are called "key/value pairs." A key/value pair has an identifier to signify which variable of the hash you want to access and a ...
http://ruby.about.com/od/rubyfeatures/a/hashes.htm
Keyword Arguments - Ruby - About.com
Ruby hasn't had keyword arguments, just the ability to have hash key/value pairs exist in the argument list without any hash decoration. But with Ruby 2.0, Ruby ...
http://ruby.about.com/od/beginningruby/ss/Keyword-Arguments.htm
Using each - Beginning Ruby Tutorial, Control Structures - About Perl
Like the array each method, these elements are placeholders that are used to pass each key / value pair into the code block as Ruby loops through the hash.
http://perl.about.com/od/rubytutorials/a/rubyeachloop_2.htm
Perl each() function - Quick Tutorial - About Perl
Perl's each() function is used to iterate (loop) through the the key / value pairs of a HASH . Each key / value pair is returned as a two-element list. %contact ...
http://perl.about.com/od/programmingperl/qt/perleach.htm
Using TDictionary - Hash Tables in Delphi - About.com
Introduced in Delphi 2009, the TDictionary class, defined in Generics.Collections unit, represents a generic hash table type collection of key-value pairs.
http://delphi.about.com/od/beginners/a/using-t-dictionary-hash-tables-in-delphi.htm
NoSQL Introduction - Building Databases for Big Data
The key of each key/value pair being fed to a NoSQL database is hashed and this hash value is used to direct the pair to a particular NoSQL database server, ...
http://databases.about.com/od/otherdatabases/a/Introduction-To-Nosql.htm
Using JSON: Structure of a JSON Document - Ruby - About.com
There are a few key/value pairs describing the top positions, and key/value pairs with Arrays as the values describing the employees in various departments.
http://ruby.about.com/od/tasks/a/Structure-Of-A-Json-Document.htm
Hash Reference - Ruby - About.com
Hash#clear - This will delete all key/value pairs, but leave the Hash object itself intact. Why not just assign a new empty Hash object to the variable? What if the ...
http://ruby.about.com/od/rubysbasicfeatures/ss/Hash-Reference.htm
NoSQL and Document Oriented Databases - Ruby - About.com
DHTs store a key/value pair in hash buckets. These buckets hold a number of key /value pairs indexed by "hash value." This hash value is a number generated ...
http://ruby.about.com/od/nosqldatabases/a/nosql1.htm
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