Hi,
What is the cost of not cacheing javascript? If that cost is serious,
do I prefer to selectively include javascript files only for view
where they are needed? In other words I see four options:
1) Cache everything in layouts/application.html.erb and don't worry
about selective inclusion of .js files where they are needed;
2) cache some things in (e.g., dependencies like jquery) and
selectively include the rest only where they are needed;
3) do not cache and only include javascript in the views it is needed;
4) cache nothing and include everything in layouts/
application.html.erb.
I cobbled together javascript functionality in development mode, such
that my layouts/application.html.erb file came to look like this:
<html>
<head>
...
<%= javascript_include_tag :defaults, "jquery-1.4.2.js", :cache=>true
%> <!-- using prototype & jquery -->
<%= javascript_include_tag
"jquery.maskedinput-1.2.2.js", :cache=>true %>
<%= javascript_include_tag "autoNumeric-1.5.1.js", :cache=>true %>
<%= javascript_include_tag "autoLoader-1.5.1.js", :cache=>true%>
<%= javascript_include_tag "jquery.metadata.js", :cache=>true %>
...
When, recently, I switched into production mode, I saw that the
expected javascripts/all.js cache file had been created, but,
unfortunately, a lot of my javascript functionality was knocked out.
When I remove the :cache option from my layouts/application.html.erb
file, like this...
<html>
<head>
...
<%= javascript_include_tag :defaults, "jquery-1.4.2.js" %> <!-- using
prototype & jquery -->
<%= javascript_include_tag "jquery.maskedinput-1.2.2.js"%>
<%= javascript_include_tag "autoNumeric-1.5.1.js" %>
...
...I get back a lot of my functionality.
Thanks,
Lille
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