[CLOSED] Listeners; Fn / Handler - whats the difference?

[wagger]

Hey,
questions to orient myself =)


What is the difference between calling a javascript function using "Fn":

<Focus Fn="searching" />

and calling it using "Handler":

<Focus Handler="searching" />

[Daniil]

Hi,

A value of .Fn must be function name to call of a function. In your example it's "searching".

A value of .Handler must be any JavaScript code to execute. So, Handler="searching" doesn't make sense it does nothing. Must be: Handler="searching()".

As well, if you need to pass any additional arguments to a listener, you should use .Handler. If you don't need to pass any additional arguments, you can use .Fn.

Also you could see in page sources how .Fn and .Handler are rendered to understand it better.