DOM Enlightenment Book

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>






















































<h4 style="border-top:1px solid #ADADAD;padding-top:20px;margin-top:20px;"><strong>&larr; Code Example from <a href="http://www.domenlightenment.com/" target="_blank">DOM Enlightenment Book</a> by <a href="http://www.codylindley.com" target="_blank">Cody Lindley</a></strong></h4>

<p>JavaScript code is executed on page load. Click the "Run" button in the top bar to re-run the JavaScript code. All <code>console.log()'s</code> are logged to the <a href="http://getfirebug.com/firebuglite" target="_blank">Firebug Lite</a> console below &darr;.</p>

JavaScript

//document own properties
console.log(Object.keys(document).sort());

//document own properties & inherited properties
var documentPropertiesIncludeInherited = [];
for (var p in document) {
    documentPropertiesIncludeInherited.push(p);
}
console.log(documentPropertiesIncludeInherited.sort());

//documment inherited properties only
var documentPropertiesOnlyInherited = [];
for (var p in document) {
    if (!document.hasOwnProperty(p)) {
        documentPropertiesOnlyInherited.push(p);
    }
}
console.log(documentPropertiesOnlyInherited.sort());

var uniqueKeys = [];

}