How do you access a JavaScript variable inside a Rails escape_javascript line?

Question

Say I'm inside a JavaScript function, I'd like access to data within the Rails line like this:

var DATA_USED
html = "<%= escape_javascript(render :partial => 'change_date_range', :locals => {:end_date_string => DATA_USED }) %>";

I'm afraid this doesn't make much sense. The JavaScript code runs in the client browser, and there'll be no trace of the Rails code there; it's all run on the server. — Pointy
– Pointy, Commented Jun 27, 2011 at 21:12

jaredonline · Accepted Answer · 2011-06-27 23:06:41Z

2

You really should use AJAX (I recommend jQuery) for this. You'll want to have JS send a request back to your Rails server with the JavaScript variable as a param in the request.

answered Jun 27, 2011 at 23:06

jaredonline

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