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onload, readyState, and DOMContentLoaded
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script> | |
window.onload = function () { | |
console.log(''+(+new Date)+': Onload fired'); | |
}; | |
document.onreadystatechange = function () { | |
console.log(''+(+new Date)+': Ready state changed'); | |
console.log("Ready state: ", this.readyState); | |
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> |
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