How Jammit handle view specific JavaScript

Question

Hi guys,

I'm trying to adopt Jammit in my Rails application.

Default config provided in documentation grabs all js files including view specific javascript:

embed_assets: on

javascripts:
  workspace:
    - public/javascripts/vendor/jquery.js
    - public/javascripts/lib/*.js
    - public/javascripts/views/**/*.js
    - app/views/workspace/*.jst

stylesheets:
  common:
    - public/stylesheets/reset.css
    - public/stylesheets/widgets/*.css
  workspace:
    - public/stylesheets/pages/workspace.css
  empty:
    - public/stylesheets/pages/empty.css

Let's consider a case when view specific javascript should be executed only on certain view:

$(function(){
  alert("View specific message here!");
}

How can I avoid such effect?

Regards, Alexey Zakharov

Answer 1

My preference is to wrap up that "view-specific-javascript" in a function. And then call that function depending on the page you actually load. In this way, all of your JavaScripts can be cached by browsers as a single file, and you can execute the portions of the JS that you need.

So I'd add a <script> tag to the particular html.erb template that calls your view-specific function on page load.

Hope that helps...