Convert ruby hash to javascript array of named values

Question

I am trying to use the jQuery plugin jQCloud to create word clouds in a rails application.

The word cloud data needs to be in a format:

var word_array = [
  {text: "Lorem", weight: 15},
  {text: "Ipsum", weight: 9},
];

I currently have a ruby hash of word frequencies like:

{"people"=>111, "other"=>110}

How can I convert this into the required named javascript array, like:

[{text: "people", weight: 11},{text: "other", weight: 11}]

---

Any ideas or suggestions would be greatly appreciated!

Thanks

Answer 1

Just use map :

hash.map { |k, v| { text: k, weight: v } }
=> [{:text=>"people", :weight=>111}, {:text=>"other", :weight=>110}]

Answer 2

hash = {"people"=>111, "other"=>110}
p hash.map { |a| Hash[[:text, :weight].zip(a)] }
# => [{:text=>"people", :weight=>111}, {:text=>"other", :weight=>110}]

Answer 3

You could try this

hash = {"people"=>111, "other"=>110}
hash.to_a.map {|k,v| [{"text" => k},{"wieght" => v}]}.flatten
=> [{"text"=>"people"}, {"wieght"=>111}, {"text"=>"other"}, {"wieght"=>110}]