title: Caching specific Javascript and CSS files
body: <p>How can I cache a few specific JavaScript &amp; CSS files. I found advice from this site to put this in my <code>.htaccess</code> file</p>
  
  <pre><code>AddOutputFilter DEFLATE css js
  ExpiresActive On
  ExpiresByType application/x-javascript A2592000
  </code></pre>
  
  <p>But it is incomplete. What is <code>.htaccess</code> and how do I create it, where to store it, in my web root folder?</p>
  
  <p>What is the meaning of the following statements:</p>
  
  <pre><code>AddOutputFilter DEFLATE css js
  ExpiresActive On
  ExpiresByType application/x-javascript A2592000
  </code></pre>
  
  <p>I dont want to cache all my Javascript &amp; CSS files rather just a few specific files which will never change.</p>
  
  <p>How can I do this?</p>