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Re: Script in <a > tag in IE

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Eric Bednarz wrote:

> Cezary Tomczyk <cezary.tomczyk@gmail.com> writes:
> 
> [event attributes versus DOM*]
> 
>> Arguments, with which I agree:
>>
>> http://stackoverflow.com/a/11742769/896702
> 
> […]
> | you are faced with having to reference named functions. This is not
> | always ideal (event handlers normally take anonymous functions)
> 
> The what? 'Normally', 'event handlers' are objects that implement the
> EventListener interface.

No, that would be event *listeners* which are implemented in user code. 
Event *handlers*, on the other hand, are implemented as built-in code that 
calls added event listeners (per W3C DOM Level 3 Events explicitly, in order 
of addition for an event).  (AISB)

Therefore, you would write

  el.addEventListener(eventType, eventListener, capturing);

to add an event listener for an event type to the represented element or

  el["on" + eventType.toLowerCase()] = eventListener;

to set the primary event listener for that event as non-capturing on the 
represented element.

Event listeners are called by the event handler for an event if they have 
not been removed later, and an event of a matching type is being propagated 
to the element.  As an (AFAIK undocumented) peculiarity of standards-
compliant DOM implementations, the object does not require the handleEvent() 
method of the EventListener interface to be implemented by the user; it 
suffices that the Function instance that is the event listener implements is 
callable, and it is called with the same arguments as handleEvent() would 
have been.  [However, IMHO a DOM event library should augment the Function 
instance with such a method, for maximum compatibility.  
jsx.dom.createEventListener() in JSX:events.js does that.]

The distinction is necessary because before W3C DOM Level 2 Events it was 
not possible to have more than one event listener for an event on an 
element.  (Which is why assigning to a then-proprietary event-handler 
property was often described misleadingly as assigning an “event handler” or 
an “event”, although the actual implementation did not differ much from the 
current ones.  The wrong terminology is [or was] prevalent in the MSDN 
Library.)

<https://developer.mozilla.org/en-US/docs/DOM/EventListener> p.

> The fantasy nomenclature for function
> declarations and expressions aside, function objects created by event
> handlers don't have an identifier, so they should be alright (eyeroll).

ACK :)

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

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Script in <a  > tag in IE Tim Slattery <Slattery_T@bls.gov> - 2013-02-07 14:32 -0500
  Re: Script in <a  > tag in IE "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-02-07 20:47 +0100
    Re: Script in <a  > tag in IE Tim Slattery <Slattery_T@bls.gov> - 2013-02-07 15:08 -0500
      Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-07 21:20 +0100
      Re: Script in <a  > tag in IE SAM <stephanemoriaux.NoAdmin@wanadoo.fr.invalid> - 2013-02-09 16:42 +0100
    Re: Script in <a  > tag in IE Tim Streater <timstreater@greenbee.net> - 2013-02-07 21:30 +0000
      Re: Script in <a  > tag in IE Denis McMahon <denismfmcmahon@gmail.com> - 2013-02-08 07:08 +0000
        Re: Script in <a  > tag in IE Christoph Becker <cmbecker69@gmx.de> - 2013-02-08 16:30 +0100
          Re: Script in <a  > tag in IE Tim Streater <timstreater@greenbee.net> - 2013-02-08 15:41 +0000
  Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-07 21:02 +0100
    Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-09 00:19 +0100
      Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-09 00:25 +0100
      Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-09 14:35 +0100
        Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-09 22:27 +0100
  Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-09 20:33 +0100
    Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 00:08 +0100
      Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-10 00:52 +0100
        Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 01:07 +0100
          Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-10 01:20 +0100
            Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 01:27 +0100
              Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-10 01:43 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 13:55 +0100
                Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-10 20:38 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 21:28 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-10 21:37 +0100
                Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-10 22:56 +0100
                Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-11 00:09 +0100
                Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-11 00:30 +0100
                Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-11 00:43 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 01:02 +0100
                Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-11 01:16 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 01:49 +0100
                Re: Script in <a  > tag in IE Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-02-11 17:59 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 18:19 +0100
                Re: Script in <a > tag in IE Scott Sauyet <scott.sauyet@gmail.com> - 2013-02-11 13:03 -0800
                Re: Script in <a > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 22:09 +0100
                Re: Script in <a > tag in IE Scott Sauyet <scott.sauyet@gmail.com> - 2013-02-11 13:59 -0800
                Re: Script in <a > tag in IE "Richard Cornford" <Richard@litotes.demon.co.uk> - 2013-02-18 00:15 +0000
                Re: Script in <a > tag in IE Scott Sauyet <scott.sauyet@gmail.com> - 2013-02-21 12:33 -0800
                Re: Script in <a > tag in IE "Richard Cornford" <Richard@litotes.demon.co.uk> - 2013-02-22 00:59 +0000
                Re: Script in <a > tag in IE Scott Sauyet <scott.sauyet@gmail.com> - 2013-02-23 07:54 -0800
                Re: Script in <a > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-22 02:00 +0100
                Re: Script in <a > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-22 01:12 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 01:38 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 00:48 +0100
                Re: Script in <a  > tag in IE Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-02-11 01:09 +0100
                Re: Script in <a  > tag in IE Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-02-20 00:07 +0100
        Re: Script in <a > tag in IE dhtml <dhtmlkitchen@gmail.com> - 2013-02-11 07:30 -0800

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