Parse ruby object in JavaScript (Rails)

Question

in my view i have one object, and want to work with this onject from javascript i try to

  var js_obj  = jQuery.parseJSON('<%=raw @rails_obj.to_json %>');

it works. but if i have "'" symbols, new string symbols, ,,, in this object all fails.

Have somebody know good approach to do it?

Answer 1

JSON is valid Javascript right out of the box, so why not just do:

var js_obj = <%= @rails_obj.to_json %>;

Answer 2

I find this to be the best way. Worked everytime

 <%= javascript_tag "var obj = #{@obj.to_json}" %>

Answer 3

You need to escape all single-quotes then. ActionView has a helper for escaping JavaScript: ActionView::Helpers::JavaScriptHelper#escape_javascript