saywell 3 Posted September 22, 2010 I've looked in wiki and searched the fora and helpfiles, but this may be too basic a question! If I want to clear a string I can use $sString = "" . Is there a similar simple way to clear the contents of an array? Redim is the nearest I've seen, but this isn't a quick and dirty way like the string example. Or would I have to specify that each element of the array = "" using a loop? Regards, William Share this post Link to post Share on other sites
water 2,409 Posted September 22, 2010 See the help file for "Dim / Global / Local / Const": "To erase an array (maybe because it is a large global array and you want to free the memory), simply assign a single value to it: $array = 0 This will free the array and convert it back to the single value of 0." My UDFs and Tutorials: Spoiler UDFs:Active Directory (NEW 2020-10-10 - Version 1.5.2.1) - Download - General Help & Support - Example Scripts - WikiOutlookEX (NEW 2020-12-15 - Version 1.6.3.1) - Download - General Help & Support - Example Scripts - WikiOutlookEX_GUI (2020-06-27 - Version 1.3.2.0) - DownloadOutlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - WikiExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example ScriptsPowerPoint (2017-06-06 - Version 0.0.5.0) - Download - General Help & SupportExcel - Example Scripts - WikiWord - WikiTask Scheduler (2019-12-03 - Version 1.5.1.0) - Download - General Help & Support - WikiTutorials:ADO - Wiki, WebDriver - Wiki Share this post Link to post Share on other sites
saywell 3 Posted September 22, 2010 See the help file for "Dim / Global / Local / Const":"To erase an array (maybe because it is a large global array and you want to free the memory), simply assign a single value to it:$array = 0This will free the array and convert it back to the single value of 0."Thanks - I thought there'd be a simple way, just couldn't find it!!Regards,William Share this post Link to post Share on other sites
Skysnake 78 Posted September 22, 2010 I knew that! ;-) Its set out in the Help File. However - I have built a 2dimensional array, and now I want to extract item x from the second dimension and I can not even find an example... Could someone perhaps point me to more 'extensive' array examples? I have too little knowlegde to figure out how to do this and the Help File is all about Dim/ReDim and _Array... functions, but not how to use specific items from a multidimensional array. It probably simple, but I do not know. Please? Skysnake Skysnake Why is the snake in the sky? Share this post Link to post Share on other sites
Melba23 3,489 Posted September 22, 2010 Skysnake,Have you read the Arrays tutorial in the Wiki? It covers 2D arrays as well.In general, to extract an element from the array, you need to specify the index/indices:; Declare a 1D array Global $aArray_1D[2] = ["A", "B"] ; Read the contents ConsoleWrite($aArray_1D[0] & " - " & $aArray_1D[1] & @CRLF) ConsoleWrite(@CRLF) ; Declare a 2D array Global $aArray_2D[2][2] = [["A", "B"], ["X", "Y"]] ; Read the contents ConsoleWrite($aArray_2D[0][0] & " - " & $aArray_2D[0][1] & @CRLF & $aArray_2D[1][0] & " - " & $aArray_2D[1][1] & @CRLF)If you posted a bit of code we might be able to help a bit more precisely. M23 Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind Open spoiler to see my UDFs: Spoiler ArrayMultiColSort ---- Sort arrays on multiple columnsChooseFileFolder ---- Single and multiple selections from specified path treeview listingDate_Time_Convert -- Easily convert date/time formats, including the language usedExtMsgBox --------- A highly customisable replacement for MsgBoxGUIExtender -------- Extend and retract multiple sections within a GUIGUIFrame ---------- Subdivide GUIs into many adjustable framesGUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView itemsGUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeViewMarquee ----------- Scrolling tickertape GUIsNoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxesNotify ------------- Small notifications on the edge of the displayScrollbars ----------Automatically sized scrollbars with a single commandStringSize ---------- Automatically size controls to fit textToast -------------- Small GUIs which pop out of the notification area Share this post Link to post Share on other sites
Skysnake 78 Posted September 22, 2010 Skysnake, Have you read the Arrays tutorial in the Wiki? It covers 2D arrays as well. In general, to extract an element from the array, you need to specify the index/indices: ; Declare a 1D array Global $aArray_1D[2] = ["A", "B"] ; Read the contents ConsoleWrite($aArray_1D[0] & " - " & $aArray_1D[1] & @CRLF) ConsoleWrite(@CRLF) ; Declare a 2D array Global $aArray_2D[2][2] = [["A", "B"], ["X", "Y"]] ; Read the contents ConsoleWrite($aArray_2D[0][0] & " - " & $aArray_2D[0][1] & @CRLF & $aArray_2D[1][0] & " - " & $aArray_2D[1][1] & @CRLF) If you posted a bit of code we might be able to help a bit more precisely. M23 Thanks, great help. Why can I not download the wiki as single file for off-line usage? Or am I just being backward? to pass a specific value from the second dimension I could use, right $getvalue = $myArray[3][2] this would put the third array item from the second dimension into my $getvalue, right? problem is all examples seem to assume that people KNOW how to do this, and I don't :-( are there samples about with predefined arrays like days of the week etc that one can just pick up and use or must I build my own? eg [day1, sunday] [day2, monday] or [1, one, first] [2, two, second] etc? Thanks for bothering with me. Skysnake Skysnake Why is the snake in the sky? Share this post Link to post Share on other sites