As David
mentioned,
Opera 11 has now the javascript method document.head for accessing the
head of an html document. The way to do that before was
document.getElementsByTagName('head')[0]
Now
document.head
And you can still use this method. But we are always looking on
improving speed for our code. So what is more effective?
jsperf helps us to find out. Results?
document.getElementsByTagName('head')[0] is 70% to 80% slower than
document.head.
Speed matters.