Symbols are commonly used as hash keys because of their efficiency more than anything else. And if you're
writing hash literals, chances are there's no reason not to take advantage of the efficiency gains by using Symbols.

Michael Edgar
adgar / carboni.ca
http://carboni.ca/

On May 29, 2011, at 8:44 PM, Tom Wardrop wrote:

> symbol's are selected as the key type purely for their aesthetics and ease of use, even when strings are a more appropriate choice.