When I launch this in chrome, nothing appears on the page.
<!DOCTYPE html>
<head><title>test 4000</title><head>
<body>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
document.writeln("test")
</script>
</body>
</html>
1 Answer
you are inserting code in a script tag that you are also using to load an external script (jQuery). you should either do the one or the other.
<script>
document.writeln("test");
</script>
if you want both do:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
document.writeln("test");
</script>
the reference states:
If the src has a URI value, user agents must ignore the element's contents and retrieve the script via the URI.
you do not need to include jQuery to use document.writeln()
5 Comments
hugomg
The "type=text/javascript" attribute is redundant, btw. You can safely take it away.
Jukka K. Korpela
The relevant reference is w3.org/TR/REC-html40/interact/scripts.html#edef-SCRIPT which says: “If the
src has a URI value, user agents must ignore the element's contents and retrieve the script via the URI.”
dreamlab
@hugomg right. this is html5 only. thanks.
hugomg
The reason that this behaviour is in the html5 standard is because it was already implemented by every browser out there. So in practice, ommiting the script type is also an "html4" feature. (This is also why the html5 doctype declaration is the way it is)
src="//only works when running from a webserver.<head>tag, you seem to be opening one inside another and closing neither