Hi kangax (and Justin),
Thanks for that, makes sense now I have morning clarity!
Appreciate your time :)
On Jan 24, 7:51 am, kangax <[EMAIL PROTECTED]> wrote:
> Michael,
>
> "var elem = $('frm');" will not throw error if element with id of
> "frm" does not exist. It will assign null to "elem" variable.
>
> Justin's example will work as expected and is one of the preferred
> ways to check for element existence.
>
> Alternatively, Element.observe('frm', 'submit', handler) will fail
> *silently* if element is not present.
>
> I would avoid using "try ... catch" as it happens to be quite
> expensive (speed wise)
>
> Hope this helps.
>
> Best,
> kangax
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