html - javascript <script> tag - code execution before src download

Question

In this snippet

<script src="takes very long to download" type="text/javascript">
  alert('hi');
</script>

Lets assume that script takes a very long time to download. Is there a chance that alert "hi" could fire before the download of script has completed? If yes, which browsers could do so? Note that I have placed "alert('hi')" inside the same tag on purpose.

Thanks

Answer 1

alert('hi') would never fire, as the script tag supports either inline code or external file code..

Read the specs at http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.1

The script may be defined within the contents of the SCRIPT element or in an external file. If the src attribute is not set, user agents must interpret the contents of the element as the script. If the src has a URI value, user agents must ignore the element's contents and retrieve the script via the URI.