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passcod/dom-loaded-test.html

Created May 26, 2012 08:29
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onload, readyState, and DOMContentLoaded
Raw
dom-loaded-test.html
<!DOCTYPE html>
<html>
<head>
<script>
window.onload = function () {
console.log(''+(+new Date)+': Onload fired');
};
document.onreadystatechange = function () {
console.log(''+(+new Date)+': Ready state changed');
if (document.readyState == "complete") {
console.log(''+(+new Date)+': Ready = Complete');
}
};
window.addEventListener("DOMContentLoaded", function () {
console.log(''+(+new Date)+': DOM Content Loaded');
});
</script>
</head>
<body>
<h1>Test</h1>
<p>To see the difference between <code>onload</code> and <code>readyState == "complete"</code>
and <code>DOMContentLoaded</code>.</p>
<p>Run me with Firebug or Chrome Dev Tools, and cache disabled, and watch the console.</p>
<hr />
<img src="http://i.imgur.com/owuVS.gif" />
<img src="http://i.imgur.com/1sE1n.jpg" />
<img src="http://i.imgur.com/A2s1e.jpg" />
<img src="http://i.imgur.com/BaFin.jpg" />
</body>
</html>
@jasonwilliams
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Performance.now() would be more useful than new Date, and its more accurate

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