OK, I see what you mean. I set a custom property of the card to the array I used earlier. It takes almost no time at all to put the contents of that property into a variable. It is not relevant whether it is a script local variable or not.
Bottom line, I do not think it makes any difference whether one uses a custom property or a variable to hold data in terms of the speed in which that data is retrieved. Craig > On Dec 14, 2023, at 7:33 PM, Bob Sneidar via use-livecode > <use-livecode@lists.runrev.com> wrote: > > That is not exactly the test he was looking for. He wants to compare > retrieving an array from a script local variable vs. getting a property of an > object like a stack, that contains the same array. At least I think that is > the question. > > Now I’d like to discuss virtual properties. It takes the form: > > Local lValueA > > setProp myVirtualProperty, pValueA > Put pValueA into lValueA > End setProp > > The reason this is really handy is because if pValueA is an array, you can > then use the form: > > getProp myVirtualProperty [pKey] > If pKey is not empty then > Return lValueA [pKey] > Else > Return tValueA > End getProp > > In other words, you can get elements of the array without getting the entire > array itself i.e.: > > Put the myVirtualProperty [“companyname”] of myLivecodeObject into > tCompanyName > > I use this quite extensively. I have a single card which contains all the > currently queried database data for caching purposes, along with the > currently selected indexes for each datagrid, and the currently selected > primary keys. I call the getProp and setProp handlers maingriddata. So I can: > > Get the maingriddata [“hilitedkeys”] of tMainCard > Get the maingriddata [“hilitedindexes”] of tMainCard > Get the maingriddata [“customers”] > Put the queriedCustomersA into tMainGridDataA > Set the maingriddata to tMainGridDataA > > And so forth. Any kind of logic can be used in the getProp and setProp > handlers. > > Bob S > >> On Dec 14, 2023, at 2:25 PM, Craig Newman via use-livecode >> <use-livecode@lists.runrev.com> wrote: >> >> Anything to distract me from my day job. >> >> An array with 100,000 elements and a variable with 100,00 lines take the >> same time to place into a field. >> >> The only time that took a while was building them. Each took 10 milliseconds. >> >> Craig >> >>> On Dec 14, 2023, at 4:55 PM, Paul Dupuis via use-livecode >>> <use-livecode@lists.runrev.com> wrote: >>> >>> Bob, >>> >>> Thank you. I could script a timing test but sometime just asking the list >>> or forums is easier. You asnwered well before I would have had the time to >>> write a basic test script. Thanks! >>> >>> >>> On 12/14/2023 4:45 PM, Bob Sneidar via use-livecode wrote: >>>> I think the confusion comes from thinking so much of a stack as an object >>>> that has substance, when really all the properties are places in memory >>>> just like a memory variable is. I asked this some years back and the >>>> answer I got was that there is no appreciable difference. >>>> >>>> One could always devise a test though… >>>> >>>> Bob S >>>> >>>> >>>> On Dec 14, 2023, at 1:22 PM, Paul Dupuis via use-livecode >>>> <use-livecode@lists.runrev.com> wrote: >>>> >>>> Which is faster or more efficient (from an engine performance perspective)? >>>> >>>> To retrieve an array from a property? >>>> As in: >>>> command someHandler -- in an objects script >>>> get the cMyArray from me -- cMyArray is some multi-dimensional array >>>> ... >>>> end someHandler >>>> >>>> OR >>>> >>>> To retrieve an array from a script local variable? >>>> As in: >>>> local sMyArray -- script local variable in some objects script >>>> >>>> command someHandler -- in an objects script >>>> get sMyArray >>>> ... >>>> end someHandler >>>> >>>> Anyone know? >>>> >>>> _______________________________________________ >>>> use-livecode mailing list >>>> use-livecode@lists.runrev.com >>>> Please visit this url to subscribe, unsubscribe and manage your >>>> subscription preferences: >>>> http://lists.runrev.com/mailman/listinfo/use-livecode >>> >>> >>> _______________________________________________ >>> use-livecode mailing list >>> use-livecode@lists.runrev.com >>> Please visit this url to subscribe, unsubscribe and manage your >>> subscription preferences: >>> http://lists.runrev.com/mailman/listinfo/use-livecode >> >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
