Rails 3 passing a rails array to javascript function which uses a javascript array

Question

I am trying to pass a rails array to a javascript function. The function will then use the array values in javascript so I need to keep it an array.

Here is how I am

Answer 1

Use Ruby's collect Method.

A cleaner version of your solution, Xaxum, would be something like this:

def chart_values
  @mpg_values.collect do |mpg_value|
    [ mpg_value.date.to_s, mpg_value.mpg.round(2).to_f ]
  end
end

The collect method automatically generates an array of whatever the block results in, so you'll end up with something like this:

[ 
  [2011-05-20, 18.56], 
  [2011-06-01, 18.47]
]

I also changed the mpg value to use to_f, which provide a number instead of a string.