How to load jQuery dynamically with Rails?

I have a page, where I load a partial (that contains a form) dynamically.

So after that you clic开发者_StackOverflow社区k in a button, via jQuery I do a get, get the form and I change the html of a div. Everything works great.

The problem is I have some javascript that I added inline on the partial and I would like to remove it. So in my partial I made something like:

<% content_for :header %>
 <%= javascript_include_tag 'myscript' %>
<%end%>

For sure in my layout I have the yield header. Actually I can see my scripting being included but the content of $(function(){}); get never executed. Any tip about it? Any better way to do it? I want to move my JavaScript to external js files but for now, I couldn't find a good way to do it.

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I had a very similar question recently, only I was trying to load jQuery itself. The answer might help you: Load jQuery in a js, then execute a script that depends on it

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Change

<% content_for :header %>
 <%= javascript_include_tag 'myscript' %>
<%end%>

To (notice the 'do' in the content_for)

<% content_for :header do %>
 <%= javascript_include_tag 'myscript' %>
<%end%>

The do is creating the builder, so I think before you weren't getting the [script src=] tags being added to your [head]

http://guides.rubyonrails.org/layouts_and_rendering.html#using-content-for

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Are you using prototype of rails and Jquery simultaneously.If you are including both then the Jquery function will not run.Please check or let me know if any other issue.