Presentation tool based on the power of CSS3 transforms and transitions in modern browsers. Dynamic procedural terrain. Ruby Hashes. A Hash is a collection of key-value pairs like this: "employee" => "salary".
It is similar to an Array, except that indexing is done via arbitrary keys of any object type, not an integer index. The order in which you traverse a hash by either key or value may seem arbitrary and will generally not be in the insertion order. If you attempt to access a hash with a key that does not exist, the method will return nil. Presentation tool based on the power of CSS3 transforms and transitions in modern browsers.