Articles related to key/value pairs
Key/Value Pairs - Ruby - About.com
Key/Value Pairs - Any value associated with a key identifying it. In a list of grades, the key 'Bob' may have the value 82 associated with it. The key 'Alice' (who is ...
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 ...
Storing Key/Value Pairs in Ruby - Structs and OpenStructs - About.com
Question: How Can I Store Key/Value Pairs in Ruby? When you need key/value storage in Ruby, it's easy to reach for hashes every time. However, you do have ...
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 ...
Using each - Beginning Ruby Tutorial, Control Structures - About.com
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.
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 ...
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, ...
Using TDictionary - Hash Tables in Delphi - About.com
Collections unit, represents a generic hash table type collection of key-value pairs. Generic types, again introduced in Delphi 2009, allow you to define classes ...
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 ...
Perl each() function - Quick Tutorial - About.com - 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 ...