How do you create javascript functions that are available project-wide in Ruby on Rails?

Question

I put the following function in my application.js:

function test() {
  alert(\"See Me\")
}

classrooms/_new_small.html.haml:

Answer 1

I tried this without an issue. Here's how I did it.

// application.js

var test=function(){
  alert("hello");
}

// in a view, whichever one, i have a content_for :additional_javascripts

<% content_for :additional_javascripts do %>
  <%= javascript_tag do %>
    test();
  <% end %>
<% end %>

// in application layout

<%= javascript_include_tag "application" %>
<%= yeild(:additional_javascripts) %>

Furthermore, if I want to alert this dynamically later on I could append it to the page and call it then, or put it in a click listener or something.

I like the syntax var functionName = function(){...} because it properly scopes the method. Also, because of the way javascripts are compiled through the asset pipeline, adding the ; at the end of every executed line is very important.

This also worked for me as far as loading the script dynamically and calling it from anywhere in the page:

$("#click_me").live("click", function(){
  $("