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mLipok

Function as a parametr

10 posts in this topic

How to run function in another function by use the function name as a parameter

example:

function _loop have a parametr - another function not result but pointer/handle to function _first

_loop(_first())
Func _loop($Function)
    For $i = 1 To 10
        "START FUNCTION $Function"
        ;
    Next
EndFunc   ;==>_loop

Func _first()
    ;........
EndFunc   ;==>_first

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You can't pass functions as parameters - why do you over-complicate the things?

Just pass a common parameter and if the value of that one is equal to something, run the function:

_loop(1)
Func _loop($which)
    For $i = 1 To 10
        Switch $which
            Case 1
                _first()
            Case 2
                ;other
                
        EndSwitch
        ;
    Next
EndFunc   ;==>_loop

Func _first()
    ;........
EndFunc   ;==>_first

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You can't pass functions as parameters - why do you over-complicate the things?

Who told you that? Nested function calls are basic to AutoIt's syntax. Don't be absurd:
$sOut = _One(_Two(StringLower(InputBox("Test", "Input String:"))))
ConsoleWrite("$sOut = " & $sOut & @LF)

Func _One($sInput)
    Return "-" & StringUpper($sInput) & "-"
EndFunc

Func _Two($sString)
    Return StringLeft($sString, 2) & StringRight($sString, 2)
EndFunc

:mellow:


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My bad :mellow:

That "basic" part eluded me so far.


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PsaltyDS, you are passing function returns, not actual functions. I think what mlipok is looking for is passing functions that can be called.

mlipok, just pass the function name inside quotes (without the parentheses) to a function, and then use 'Call', as in:

Call("function")

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Down side to using function names as parameters is that you can't use functions, that need parameters, for that purpose.

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Not sure I follow you, omikron48. Call() supports parameters too.

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Whoops. Goes to show, it's not wise to mouth off on stuff you seldom use. Must have confused it with HotKeySet.

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#9 ·  Posted (edited)

My bad :P

That "basic" part eluded me so far.

Nope, on closer examination of the OP based on what Ascend4nt said, you weren't that far off. I think the OP may have really meant to pass the function name as a string, and should then be using Call($function [, <parameters>]):
_loop("_first")

Func _loop($Function)
    For $i = 1 To 10
        Call($Function, $i)
    Next
EndFunc   ;==>_loop

Func _first($iInput)
    ConsoleWrite($iInput & " cubed = " & $iInput ^ 3 & @LF)
EndFunc   ;==>_first

Just a small example of me being sparse in my correctness...

:mellow:

Edited by PsaltyDS

Valuater's AutoIt 1-2-3, Class... Is now in Session!For those who want somebody to write the script for them: RentACoder"Any technology distinguishable from magic is insufficiently advanced." -- Geek's corollary to Clarke's law

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Thanks PsaltyDS

it's works fine


Signature beginning:   Wondering who uses AutoIT and what it can be used for ?
* GHAPI UDF - modest begining - comunication with GitHub REST API *
ADO.au3 UDF     POP3.au3 UDF     XML.au3 UDF    How to use IE.au3  UDF with  AutoIt v3.3.14.x  for other useful stuff click the following button

Spoiler

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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