你相信确认吗？[英] Do You Believe in Confirm?

问题描述

I read in the book Javascript The Definitive Guide by David Flanagan
the following in reference to the use of alert, confirm, and prompt.

"Although these dialog methods are extremely simple and easy to use,
good design dictates that you use them sparingly, if at all. Dialog
boxes like these are not a common feature of the web paradigm, and
they have become much less common now that more capable web browsers
support scripting of the document content itself..."

Do you agree with this statment? If so, let us suppose you want to
confirm a delete operation. How do you go about doing this in a "web-
friendly" way.

Thanks,
Mike

推荐答案

On Fri, 11 May 2007 08:20:25 -0700, MikeC wrote:

I read in the book Javascript The Definitive Guide by David Flanagan the
following in reference to the use of alert, confirm, and prompt.

"Although these dialog methods are extremely simple and easy to use,
good design dictates that you use them sparingly, if at all. Dialog
boxes like these are not a common feature of the web paradigm, and they
have become much less common now that more capable web browsers support
scripting of the document content itself..."

Do you agree with this statment? If so, let us suppose you want to
confirm a delete operation. How do you go about doing this in a "web-
friendly" way.

Yes. I''ve never used these features. Just a personal preference, not so
much a "you shouldn''t do it" opinion.

There''s virtually no difference in the code to write a confirmation form
and using the javascript dialog confirmation.

On May 11, 4:20 pm, MikeC <mcrav...@att.netwrote:

I read in the book Javascript The Definitive Guide by David Flanagan
the following in reference to the use of alert, confirm, and prompt.

"Although these dialog methods are extremely simple and easy to use,
good design dictates that you use them sparingly, if at all. Dialog
boxes like these are not a common feature of the web paradigm, and
they have become much less common now that more capable web browsers
support scripting of the document content itself..."

Do you agree with this statment? If so, let us suppose you want to
confirm a delete operation. How do you go about doing this in a "web-
friendly" way.

Thanks,
Mike

It depends on who you are and what you are trying to achieve.
Personally, I prefer the look and feel of a floating div, which you
can customise to your hearts content.

Obviously, the class for a customised div would take up considerably
more space that a simple:
var answer = confirm("Continue?");

If your script is seriously simple, or just a simple confirmation for
say, submitting a form, then I believe that the standard confirm
dialog will suffice. If you are writing a much larger, and more
complex script, like https://www.youos.com/ have done for example. I
think that the standard dialog box may look out of place, and a themed
confirmation box might be in order, that perhaps gives more than one
option to choose from.

We also need to take speed into account. Sure, almost everyone on the
internet these days has fast broadband, but there are still lots of
people out there on dialup connections. The more code we write, the
longer it takes them to load a page, and the more agitated they are
likely to become. We can''t just shut out these people because it suits
us, can we? Perhaps we can, which brings me back to my original point.
It all depends on what you want to achieve.

Also, one thing to note: With the standard confirm dialog, the browser
is effectively frozen until the process is killed, or the confirmation
dialog has been answered. Sometimes this effect is desirable, other
times, it''s not.

Hope I haven''t said anything too dumb.

Best wishes.

Daz.

On May 11, 8:26 am, Ivan Marsh <anno...@you.nowwrote:

On Fri, 11 May 2007 08:20:25 -0700, MikeC wrote:

I read in the book Javascript The Definitive Guide by David Flanagan the
following in reference to the use of alert, confirm, and prompt.

"Although these dialog methods are extremely simple and easy to use,
good design dictates that you use them sparingly, if at all. Dialog
boxes like these are not a common feature of the web paradigm, and they
have become much less common now that more capable web browsers support
scripting of the document content itself..."

Do you agree with this statment? If so, let us suppose you want to
confirm a delete operation. How do you go about doing this in a "web-
friendly" way.

Yes. I''ve never used these features. Just a personal preference, not so
much a "you shouldn''t do it" opinion.

There''s virtually no difference in the code to write a confirmation form
and using the javascript dialog confirmation.

Ivan,

I think the objection to using confirm is two-fold. First, it pops up
a dialog which is a normal user interface in non-web applications. But
on the web, people don''t like things popping up into separate windows.
The other possible objection - although I don''t know this for sure -
is that these are modal controls, meaning that you can''t do anything
else until you reply in some way.

How do you handle a confirmation form? Do you display it as another
frame? Thanks for your input.