Should Au3Check Count Global Variables Declared Inside Functions?
By
TheDcoder, in AutoIt Technical Discussion
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By xiantez
This script used to work on an older version of AutoIT. Currently I am running AutoIT v3.3.14.5 and it's failing.
Func PublicIP() ;Post public facing IP address Local $url = 'https://www.google.com/search?client=opera&q=what+is+my+ip&sourceid=opera&ie=UTF-8&oe=UTF-8' Local $getIPaddress = BinaryToString(InetRead($url)) Local $sStart = 'clamp:2">' Local $sEnd = '</div>' Local $ipaddress = _StringBetween($getIPaddress, $sStart, $sEnd For $i In $ipaddress MsgBox(0, 'External IP', "Your public IP address is " & $i) Next EndFunc ;==>PublicIP The console output shows:
"C:\Users\user\Documents\AutoIT\Scripts\WSI Tools.au3" (197) : ==> Variable must be of type "Object".: For $i In $ipaddress For $i In $ipaddress^ ERROR ->14:12:16 AutoIt3.exe ended.rc:1 +>14:12:16 AutoIt3Wrapper Finished. >Exit code: 1 Time: 9.811
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By nacerbaaziz
hi dears, i have an question please if you can help me.
i maked an program to do some functions
and this program works with the global hot keys
i added an option to the users to change the hot keys
when i searched about how to do that i found this UDF
GUIHotkey.au3
http://www.autoitscript.com/forum/index.php?showtopic=107965
but the problem here that this UDF cant be detect the win key.
can you help me to add it, or if there are any others UDFSS wich do that work please give me some.
i hope that my question is clear for you.
thanks in advance
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By California
Hello,
I wrote a benchmark script to measure variable declarations
to find out whether you should focus more on static or global variables
#cs ---------------------------------------------------------------------------- AutoIt Version: 3.3.14.5 #ce ---------------------------------------------------------------------------- #Region Pre-Setting Local $iTally1 = 0 Local $iTally2 = 0 Local $iTally3 = 0 Local $iTally4 = 0 Local $iTally5 = 0 Local $iTally6 = 0 Local $iTally7 = 0 Global $GLOBALCONST1 = 1 Global $GLOBALCONST2 = 1 Global $GLOBALCONST3 = 1 Global $GLOBALCONST4 = 1 Global $GLOBALCONST5 = 1 #EndRegion Pre-Setting #Region Test Functions Func s1() Static $i = $GLOBALCONST1 Return $i EndFunc Func g2() Return $GLOBALCONST2 EndFunc Func g3() Static $i7 = "gsdgdfegbgbrwefw" Return $GLOBALCONST3 EndFunc Func g4() Static $i1 = 1 Static $i2 = "asd" Static $i3 = 234 Static $i4 = True Static $i5 = [0] Static $i6 = "hgsdg" Static $i7 = 1 Static $i8 = 1 Static $i9 = 1 Static $i0 = 1 Return $GLOBALCONST4 EndFunc Func g5() Local $i = $GLOBALCONST5 Return $i EndFunc Func g6() Local $i = 1 Return $i EndFunc Func g7() Return 1 EndFunc #EndRegion Test Functions #Region Benchmark Loop For $i = 0 To 15 Local $tDelta = TimerInit() Do $iTally1 += s1() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally2 += g2() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally3 += g3() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally4 += g4() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally5 += g5() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally6 += g6() Until TimerDiff($tDelta) >= 1000 Local $tDelta = TimerInit() Do $iTally7 += g7() Until TimerDiff($tDelta) >= 1000 Next #EndRegion Benchmark Loop ConsoleWrite(@CRLF&"Static1: "&$iTally1&" pkt"&@CRLF&"Global2: "&$iTally2&" pkt"&@CRLF&"Global3: "&$iTally3&" pkt"&@CRLF&"Global4: "&$iTally4&" pkt"&@CRLF&"Local5: "&$iTally5&" pkt"&@CRLF&"Local6: "&$iTally6&" pkt"&@CRLF&"Hardcode7:"&$iTally7&" pkt"&@CRLF) #cs Result Static1: 10291881 pkt global to static Global2: 13977324 pkt only global Global3: 9886169 pkt global and static Global4: 2933051 pkt global and many statics Local5: 9937314 pkt global to local Local6: 10306484 pkt only local Hardcode7: 14835319 pkt no variable #ce Result:
100% no variable, hardcore value
94% only global variable use
69% only local variable use with hardcore value set
69% only static variable use with global variable value set
67% declaration of local variable with global variable value set
66% only global variable use with one static variable beside
20% only global variable use with ten static variables beside
My thesis of the result:
Be careful with declarations, whether local, global or static Note: in my test the global variable performance was better than the local one, but in practice the global one would lose performance due to multiple operations
What is your best practice sharing data between multiple functions?
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By TheAutomator
Is this better to check a variable before you assign it to a value that could be the same?
for example:
local $EmptyLog = false func WriteLog($text) _guictrledit_appendtext($log, ($EmptyLog ? @CRLF : $empty) & $text) If $EmptyLog Then $EmptyLog = False endfunc or does AutoIt behind the scenes already check this?
i guess overwriting memory with the same value over and over again is not good if you can prevent this with a check?
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