Imperative vs. Declarative programming

[marc_clifton2000]

Hi All,

I've posted a short blurb about the benefits of separating
declarative code from imperative code:

http://www.myxaml.com/wiki/ow.asp?DeclarativeVsImperativeProgramming

Comments are welcome!

Marc



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[Gerald Bauer]

Hello,

Post by marc_clifton2000
I've posted a short blurb about the benefits of separating

I just stumbled over a comment by Manish Jethani that touches on
the same theme. Manish writes:

The "in" thing now is to put the UI description, including the
association of event handlers with their controls, into an XML file.
XUL, XAML, SwixML, .... The UI is separate from the logic.

Mozilla, in particular, actually does all of its UI work in the XUL
layer. The event handlers are actually just JavaScript functions! The
execution doesn't go into Mozilla "core" (I mean the C++ code, the
components that make up the real Mozilla) until there's some real work
to be done. It's really fantastic.

Now, haven't we come full circle? The UI in VB was a FMB (binary)
file. In VC++ it was a RES (binary again) file. They've just become
XML files now. :) Writing programming language code manually to set up
the UI never appealed to me.

- Gerald

-------------------
Gerald Bauer

XUL Alliance | http://xul.sourceforge.net
United XAML | http://xaml.sourceforge.net

Interested in hiring Gerald Bauer? Yes, I'm available.
If you know of an opportunity, please contact me today.




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[marc_clifton2000]

I think the key point is in this statement: "The execution doesn't
go into Mozilla "core" (I mean the C++ code, the components that
make up the real Mozilla) until there's some real work to be done.
It's really fantastic."

in particular--"until there's some real work to be done".

So no, I don't think we've come full circle. I like the idea of
having workflows defined in a scripting language. While I'm not
using JavaScript with MyXaml (hmmm, maybe I really should take
another look at this), I've put together a concept piece for
managing workflows in XML.

See http://www.myxaml.com/wiki/ow.asp?Workflows

Marc




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