Forum: Ruby on Rails pass ruby array to javascript function

Announcement (2017-05-07): www.ruby-forum.com is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see rubyonrails.org/community and ruby-lang.org/en/community for other Rails- und Ruby-related community platforms.
David (Guest)
on 2009-01-19 23:01
(Received via mailing list)
Im wondering how to go about passing a ruby array to a javascript
function.  I was able to do this the other way around and pass a
javascript array to an action using JSON and convert it back to a ruby
array:

 Object.toJSON(<%= array_or_string_for_javascript(@array) %>

then in the action I was able to do:

ruby_array = JSON.parse(params[:array])

But this time I want to pass an array to a javascript function through
a function call within :update

        render :update do |page|
          page << "setTime(#{time})"
        end

where setTime is the javascript function and time is the ruby array.
I can pass a number and it works fine, but with strings and arrays I
get an error.  How would I go about passing a ruby array to a
javascript function in this context?  Any help is greatly appreciated!
David (Guest)
on 2009-01-19 23:12
(Received via mailing list)
Nevermind, I figured it out: array.to_json works just fine.  Way
simpler than I thought.
This topic is locked and can not be replied to.