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Articles related to arrays and hashes

Creating Hashes from Arrays - Ruby - About.com
However, the code you need to interface with expects an array of hashes, keys being column names and values being the value for that row and column. What's  ...
Building Hashes From Arrays - Ruby - About.com
It's often useful to build hashes from an array. This can be done easily using the Hash[ … ] syntax. It'll take an unlimited number of arguments (as long as it's an ...
How to Create and Use Hashes in Ruby - About.com
This article explains and teaches how to use a associative arrays (hashes) as a way to store multiple variables in one data structure.
Everything You Wanted To Know About Hashes - Ruby - About.com
Hashes are the bread and butter of Ruby data structures. For any unordered structure, you'll find hashes used everywhere. If it's ordered, you'll see arrays used, ...
Hashes - Ruby - About.com
A Hash is a type of data structure that matches keys with values. Where as an array is indexed with integers, that is the data is in order and indexed by their ...
Method for Mapping the Values of an Array - Ruby - About.com
Say you have an array of symbols, as well as a hash. For each symbol in the array, you want to look up that symbol in the hash and add the value from the hash ...
Serialized Hashes - Ruby - About.com
A hash is an associative array. Instead of using numerical indexes, any object ( but typically symbols) can be used. They can be both a fast way to retrieve an ...
How to Make Deep Copies in Ruby - About.com
While this may seem simple, and it is for simple objects, as soon as you have to make a copy of a data structure with multiple array or hashes on the same object,  ...
Hash Quick Reference - Ruby - About.com
Hashes can be created from an array of key/value pairs with the Hash[] method. If you have the array a = [:a, 10, :b, 20], you can create the hash {a:10, b:20} from ...
Introduction to Arrays - Ruby - About.com
In fact, it's quite odd that you may have learned about Hashes before Arrays as many Ruby programmers do. In many languages, the Hash is a rather small ...
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