Guest Posted February 3, 2015 Share Posted February 3, 2015 (edited) Hello, I have question about what is better to do. People say here that it not recommended to declare Local variables inside loop. In my case I use function that I register with AdlibRegister. So what inside the function is run again and again (like in loop). In that function I use Local variables in order to perform some internal tasks. The question is - is it better to use almost always Local Static because the code in the function run again and again(like inside normal loop) ? Because I think that in this way the machine does not need to declare the variables again and again. Maybe it makes the code to be faster because it declares the variables once. I think I need to use almost always Local Static in that case. What do you think?If that does not belong here then please move it to developer chat. Thank you Edited February 3, 2015 by Guest Link to comment Share on other sites More sharing options...
Luigi Posted February 3, 2015 Share Posted February 3, 2015 (edited) 2 questions: a] how is the AdLibRegister's time? b] you can use a global variable to do the same work of static variable? Edited February 3, 2015 by Detefon Visit my repository Link to comment Share on other sites More sharing options...
water Posted February 3, 2015 Share Posted February 3, 2015 (edited) A Local Static variable is only created on the first call to the function. It works like a Global variable but the scope is limited to the function where it is created. So if you need to access a value of a previous run of the function (like a counter) Local Static is fine. If the variable can be dropped when the function is terminated then I would use Local. Edited February 3, 2015 by water My UDFs and Tutorials: Spoiler UDFs:Active Directory (NEW 2022-02-19 - Version 1.6.1.0) - Download - General Help & Support - Example Scripts - WikiExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example ScriptsOutlookEX (2021-11-16 - Version 1.7.0.0) - Download - General Help & Support - Example Scripts - WikiOutlookEX_GUI (2021-04-13 - Version 1.4.0.0) - DownloadOutlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - WikiPowerPoint (2021-08-31 - Version 1.5.0.0) - Download - General Help & Support - Example Scripts - WikiTask Scheduler (NEW 2022-07-28 - Version 1.6.0.1) - Download - General Help & Support - Wiki Standard UDFs:Excel - Example Scripts - WikiWord - Wiki Tutorials:ADO - WikiWebDriver - Wiki Link to comment Share on other sites More sharing options...
Guest Posted February 3, 2015 Share Posted February 3, 2015 (edited) 2 questions: a] how is the AdLibRegister's time? b] you can use a global variable to do the same work of static variable? a] 5000ms b] Yes but I don't want to because I'd rather avoid global vars that used only by this function A Local Static variable is only created on the first call to the function. It works like a Global variable but the scope is limited to the function where it is created. So if you need to access a value of a previous run of the function (like a counter) Local Static is fine. If the variable can be dropped when the function is terminated then I would use Local. One reason I know why I need to use Local Static is when (a)+(b ) is valid: (a) the variable need to be saved after the function ends. (b ) when the variable used only by this function. I do not have questions about one reason. But, I have a question about the second reason that I wrote about it here, which is to avoid from re-declare the variable again and again (In function that run again and again like code in loop). And this is my question.. Edited February 3, 2015 by Guest Link to comment Share on other sites More sharing options...
BrewManNH Posted February 3, 2015 Share Posted February 3, 2015 Have you even bothered to test the two ways? Do some timing tests to see if it makes any difference and how much, I'm guessing you won't notice much of a difference at all. Your response to water doesn't make much sense. Are you saying the value in the variable needs to be retained from one run to another? If so then Static is just what you need. If you don't need the value in the variable to be retained then don't use Static because it only gets reset once. Seems simple enough to me. If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag GudeHow to ask questions the smart way! I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from. Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays. - ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script. - Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label. - _FileGetProperty - Retrieve the properties of a file - SciTE Toolbar - A toolbar demo for use with the SciTE editor - GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI. - Latin Square password generator Link to comment Share on other sites More sharing options...
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