Is it really necessary to wait for the "ready" (or "window.onload") events if your code only manipulates DOM elements that have already been parsed entirely?
The jQuery documentation for the "ready()" function demonstrates how you could wait to perform actions until the DOM is entirely ready but the example is for code (script tags) that are listed before the DOM elements in question. But it seems that code which appears after the necessary DOM elements in an HTML document has access to them since, presumably, the DOM is built as the browser parses the document.
For example, is it safe to assume that the following code is reliable in all situations or is it still necessary (or beneficial somehow) to use a ready/onload handler?
<body>
<div id="foo"/>
<script type="text/javascript">
var foo = document.getElementById('foo');
foo.innerHTML = 'The element #foo is loaded!';
</script>
</body>
This SO question is very similar but I wanted to bump it to see if there is any more information.
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