From: Mikel Lindsaar <raasdnil@...>
Date: 2008-05-07T20:18:46+09:00
Subject: idiom for Hash like map...

class Fruit
  attr_accessor :name, :price
  def initialize(args)
    @name = args[:name]
    @price = args[:price]
  end
end

array = [ Fruit.new(:name => "apple", :price => 2),
          Fruit.new(:name => "grape", :price => 20),
          Fruit.new(:name => "pear",  :price => 200) ]

hash = Hash.new

array.each do |obj|
   hash.merge!({obj.name => obj.price})
end

hash.inspect # => "{\"grape\"=>20, \"apple\"=>2, \"pear\"=>200}"



The "hash = {} / hash.merge!" thing bugs me... what is the better way?


Mikel