I'm a bit skeptical that any such difference actually exists. Both the
short and long forms should map to the exact same compiled code.
Theoretically the long form would take longer to parse / compile the
first time, but we're talking about the parsing of individual
characters -- something that would have immeasurably small impact.
When I run the benchmark, the faster method seems to depend on a
combination of which one appears first in the script and/or the
direction of the wind, and doesn't appear to be repeatable.
René Micout wrote:
Jacqueline,
You said yesterday (?) that using synonym like "cd", "btn", "fld"
is slower than "card", button", "field". That is, I think, an
interesting problem because I use synonym every time...
What is the difference (speed) ?
Not enough to bother with, IMO.
I ran this test:
on mouseUp
put 100000 into n
-- Abbrev:
put the millisecs into t
repeat n
set the uX of sb 1 to the text of fld 1
end repeat
put the millisecs - t into t1
-- Full:
put the millisecs into t
repeat n
set the uX of scrollbar 1 to the text of field 1
end repeat
put the millisecs - t into t2
--
put "Abbrev: "& t1/n && " Full: "& t2/n &\
cr& "Difference: "& t1/n - t2/n
end mouseUp
...and got this result:
Abbrev: 0.00213 Full: 0.00211
Difference: 0.00002
I'm normally quick to adopt habits which will optimize performance,
knowing that every clock cycle saved is one I can put toward bullet-
point features, but on this one the productivity loss of typing the
full form for all object references isn't worth the 0.00002
millisecond to me.
No doubt this difference would be much greater if one were doing
this in a "send", "do" or "value" call because those need to run
through the compiler in each iteration. But for that reason I use
those as seldom as possible anyway; the overhead of using "send" is
orders of magnitude more than the overhead of using abbreviations.
It's still not the end of the world to use "send", and when you need
it you need it. But avoiding "send", "do", or "value" where
practical will save you much more time than avoiding abbreviations.
Besides, with "dispatch" and behaviors in v3.5 I rarely use "send"
these days. "Dispatch" is similar to send in many ways, and AFAIK
it still needs to be runtime-compiled, but something about it is
optimized so that it benchmarks at least 30% faster.
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