LiveCode 4.6.1 message path and behaviors

[Pete]

Send has an "in time" clause that allows you to delay the sending of the
message - dispatch doesn't have that.  In some circumstances, datagrid
messages need to be sent with "in zero seconds" (more info in the Datagrid
Tutorial at
http://lessons.runrev.com/spaces/lessons/manuals/datagrid/lessons/7340-What-Sorts-of-Things-Should-I-Not-Do-In-Order-To-Avoid-Needless-Suffering-
Pete
Molly's Revenge <http://www.mollysrevenge.com>




On Mon, May 23, 2011 at 12:58 PM, Todd Geist <todd at geistinteractive.com>wrote:

> This last little post by Richard makes me think of JavaScript, The Good
> Parts, by Douglas Crawford.
>
> Crawford lays out a case for which parts of JavScript should be used and
> which are to be avoided at all cost.  I wonder if something similar could
> be
> done with LiveCode.  Or perhaps just a guide to what parts can be left
> behind.
>
> For example, I am reasonably certain that I will never need to write code
> that is compatible with HyperCard, So does that mean that I never need to
> use Send, and I can always use Dispatch?
>
> Todd
>
>
>
>
> On Mon, May 23, 2011 at 11:03 AM, Richard Gaskin <
> ambassador at fourthworld.com
> > wrote:
> >
> >
> > There is a sense of theory about LiveCode's language, but it's equally
> > saddled by a richly varied history.
> >
> > The difference between "send" and "dispatch" is a good example:
> >
> > IMO (and perhaps most people's) the syntax for including arguments with
> > "send" is beautiful in its simplicity:
> >
> >   dispatch "SomeMessage" to "SomeObject" with tSomeVariable
> >
> > Send is much funkier, requiring you to send the variable name as part of
> > the string being sent:
> >
> >   send "SomeMessage tSomeVariable" to "SomeObject"
> >
> >
> > The "send" command first appeared in HyperTalk more than 20 years ago, so
> > when it was added to LiveCode the implementation remained the same for
> > compatibility.
> >
> > But once RunRev identified a need for a different message like
> "dispatch",
> > unencumbered by historic compatibility they were free to use more
> graceful
> > syntax.
> >
> > It might be nice if "send" could be enhanced in a future version to use
> the
> > "with" token to passing arguments, but with so many priorities to address
> > this will likely have to wait.
> >
> > So in the meantime we have one of a few such anomalies in the language.
> >
> > --
>
> Todd Geist
> ------------------------------
> geist interactive <http://www.geistinteractive.com>
> 805-419-9382
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