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Re: Why does savepng workl with eventlistener but not by call from form?

From Scott Sauyet <scott@sauyet.com>
Newsgroups comp.lang.javascript
Subject Re: Why does savepng workl with eventlistener but not by call from form?
Date 2016-11-26 21:09 +0000
Organization A noiseless patient Spider
Message-ID <o1ctld$g60$1@dont-email.me> (permalink)
References <58b433c6-37a6-45de-bc70-05ec835510ff@googlegroups.com> <bfa1965d-1bf2-4024-86e3-ce7535870d2b@googlegroups.com> <17n7y8md13g1b$.kznrbim03ls$.dlg@40tude.net> <2828265.aV6nBDHxoP@PointedEars.de>

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Thomas 'PointedEars' Lahn wrote:

> This has become a lot easier since the UI Events Specification that
> deprecated the Event::init*Event() methods, with their insanely long
> parameter lists, in favor of proper constructors:
> 
>   anObject.dispatchEvent(new MouseEvent("click", {
>     view: document.defaultView,
>     bubbles: true,
>     cancelable: true
>   }));
> 
> [Formerly:
> 
>   var mouseEvent = document.createEvent("MouseEvents");
>   mouseEvent.initMouseEvent("click", true, true, window,
>     0, 0, 0, 0, 0, false, false, false, false, 0, null);
>   anObject.dispatchEvent(mouseEvent);
> 
> Lesson to be learned: Design functions/methods to accept references to
> parameter/option objects, and not more than 5 arguments [unless it is a
> list of values of equal meaning, see e.g. Math.max()].  Otherwise nobody
> is going to remember the correct argument order, you will be sacrificing
> flexibility, [ ... ]

Why five?  That still seems far too many for almost every case.  Three 
seems to me a much better guideline.  Of course everyone will draw these 
lines differently for themselves, but I was wondering: do you have a 
specific reason for that number?

  -- Scott

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Thread

Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-10 14:35 -0800
  Re: Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-10 15:47 -0800
    Re: Why does savepng workl with eventlistener but not by call from form? JJ <jj4public@vfemail.net> - 2016-11-11 21:05 +0700
      Re: Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-11 06:35 -0800
        Re: Why does savepng workl with eventlistener but not by call from form? JJ <jj4public@vfemail.net> - 2016-11-11 22:01 +0700
          Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-11 16:21 +0100
      Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-11 16:08 +0100
        Re: Why does savepng workl with eventlistener but not by call from form? Scott Sauyet <scott@sauyet.com> - 2016-11-26 21:09 +0000
          Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-26 22:47 +0100
            Re: Why does savepng workl with eventlistener but not by call from form? "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-11-27 00:11 +0100
              Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-27 00:57 +0100
                Re: Why does savepng workl with eventlistener but not by call from form? Scott Sauyet <scott@sauyet.com> - 2016-11-27 01:08 +0000
                Re: Limit number of function parameters (was:Why does savepng workl with eventlistener but not by call from form?) "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-11-28 18:17 +0100
                Re: Limit number of function parameters (was:Why does savepng workl with eventlistener but not by call from form?) Scott Sauyet <scott@sauyet.com> - 2016-11-29 02:15 +0000
                Re: Limit number of function parameters "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-12-02 20:24 +0100
                Re: Limit number of function parameters Scott Sauyet <scott@sauyet.com> - 2016-12-03 01:58 +0000

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