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Having the code below:
<html>
<head>
<script>
function elem_onload() {
console.log("elem_onload");
};
</script>
</head>
<body onload="elem_onload()">
<script type="text/javascript" src="script.js" defer></script>
</body>
</html>
script.js:
console.log("external script");
the defer attribute doesn't seems to work. The output is:
external script
elem_onload
whether with or without defer attribute. Shoudn't it be
elem_onload
external script
with defer defined?
I'd like to state that my answer isn't duplicate of
How exactly does <script defer=“defer”> work?
The referenced recommended answer is about inline script where the browser behavior is clear for me - it simply ignores defer. My question is about external script in which case the browser should execute the external deferred script
after the document has been parsed
as documentation states hence after onload event.
So I'm waiting for an appropriate answer...
665
It is about the onload.
Here's a definition of onload attribute, taken from this page.
The onload attribute fires when an object has been loaded.
onload is most often used within the <body> element to execute a script once a web page has completely loaded all content (including images, script files, CSS files, etc.). However, it can be used on other elements as well (see "Supported HTML tags" below).
Hence, the onload function will execute after the content inside the body had been loaded, that is - after the inner script had executed.
137
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