thanks this worked well. I guess the key the if statement is testing for truth
of a statement that anything that makes it false counts as false even if its
non existence.
o = document.getElementsByTagName('title')[0]) &&
nice code. thanks
On 6/17/07, RobG <[EMAIL PROTECTED]> wrote:
On Jun 17, 2:52 pm, "Scottus " <[EMAIL PROTECTED]> wrote:
> I am using
>
> var title = document.getElementsByTagName('title').item(0).innerHTML;
>
> to get the content of a pages title tag.
>
> But if the page has no title tag I get
>
> "Error: document.getElementsByTagName("title").item(0) has no properties"
>
> and the script craps out.
>
> any ideas about how to deal with this ?
An HTML document without a title element is invalid. Christopher has
given you a jQuery answer, a generic answer is that if you try to get
a property of an object that doesn't exist your script will error. If
you want a belt & braces approach, try something like:
var o;
if ( document &&
document.getElementsByTagName &&
(o = document.getElementsByTagName('title')[0]) &&
(typeof o.text == 'string') )
{
alert('The document title is: ' + o.title);
}
Or if you like being a little more risque, try:
alert( document.title );
--
Rob
--
Scott Wickham
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