From: Pete Hodgson <phodgson@...>
Date: 2008-10-09T10:00:27+09:00
Subject: Filling a hash from an enumerable

Hi folks,

Given:

Person = Struct.new(:name,:age,:city)
people_array = [
    Person.new('bob',12,'SFO'),
    Person.new('dave',14,'NYC'),
    Person.new('jane',6,'LDN') ]

people_map = {}
people_array.each{ |p| people_map[p.name] = p }


Is there a cleaner way to build people_map? I'm thinking there might be 
something like:

people_map = people_array.to_map{ |x| x.name }

in the standard library somewhere that I don't know of.

Thanks for any pointers,
Pete