How does compiling happen only for the first time in projectless development?
<p>I read these words in a book:</p>

<blockquote>
  <p><strong>Projectless development simplifies debugging</strong>: When creating a web project, you must recompile the entire application when you change a single page. With projectless development, each page is compiled separately, <em>and the page is only compiled when you request it for the first time.</em> </p>
</blockquote>

<p>How does compiling happen only for the first time in projectless development?
Should it recompile every time I run the page to reflect the new code I wrote it?</p>
