How to add/include js file into Magento theme

Question

I am modifying a Magento theme. And want to add a js file into the theme /js folder. I have added the following code:

Answer 1

Best solution insert into local.xml file with reference name="head"

<action method="addJs">
    <script>js/custom.js</script>
</action>

Answer 2

Please try this, i think this is the way to add our js/css files into the load.xml:

<layout>
  <default>
    <reference name="head">
        <action method="addItem">
            <type>skin_js</type>
            <name>js/jquery-1.11.0.min.js</name>
        </action>
    </reference>
  </default>
</layout>

Answer 3

You can add your custom JS file in your theme's local.xml, located in: /app/design/frontend/{design package}/{theme}/layout/local.xml

 <?xml version="1.0"?>
 <layout version="0.1.0">
    <default>
       <reference name="head">
          <action method="addItem"><type>skin_js</type><name>js/script_name.js</name></action>
       </reference>
    </default>
 </layout>