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Call a JavaScript Function Passing an Array Argument

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Demonstrates how to call a JavaScript function with an argument that is an array. AutoIt

Local $bSuccess = False

; This is the JavaScript function we'll call:

; function calculateTotal(numbers) {
;   console.log(numbers);
;   let total = 0;
;   
;   // Loop through every number in the array
;   for (const num of numbers) {
;     console.log(num);
;     total += num;
;   }
;   
;   return total;
; }

$oSbScript = ObjCreate("Chilkat.StringBuilder")
$bSuccess = $oSbScript.LoadFile("js_function_array_arg.js","utf-8")
If ($bSuccess = False) Then
    ConsoleWrite($oSbScript.LastErrorText & @CRLF)
    Exit
EndIf

$oJs = ObjCreate("Chilkat.Js")

$oResult = ObjCreate("Chilkat.JsonObject")
$oResult.EmitCompact = False

; Call Eval to add the function to the context's global object
$bSuccess = $oJs.Eval($oSbScript,$oResult)
If ($bSuccess = False) Then
    ; Examine the result for an exception.
    ConsoleWrite($oResult.Emit() & @CRLF)

    ; Also examine the LastErrorText.
    ConsoleWrite($oJs.LastErrorText & @CRLF)
    Exit
EndIf

; ------------------------------------------------------------------------------
; Call the function calculateTotal(numbers)

$oFuncCall = ObjCreate("Chilkat.JsonObject")
$oFuncCall.EmitCompact = False

; Create JSON specifying the function name and arguments
; In this case, there is only 1 argument, and it is an array.

$oFuncCall.UpdateString("name","calculateTotal")

; Create the arguments array.
$oArgsArray = ObjCreate("Chilkat.JsonArray")

; The 1st argument in the arguments array is itself an array.
; Passing -1 indicates to append to the array.
$oArg = ObjCreate("Chilkat.JsonArray")
$oArgsArray.AddArrayAt2(-1,$oArg)

; Fill in the values for the 1st argument.
$oArg.AddNumberAt(-1,"10.50")
$oArg.AddNumberAt(-1,"20.00")
$oArg.AddNumberAt(-1,"5.25")

; Add the "args" array to the funcCall.
$oFuncCall.AppendArrayCopy("args",$oArgsArray)

ConsoleWrite($oFuncCall.Emit() & @CRLF)

; The funcCall is as follows.  Notice that the 1st (and only) argument is an array.

; {
;   "name": "calculateTotal",
;   "args": [
;     [
;       10.50,
;       20.00,
;       5.25
;     ]
;   ]
; }

$bSuccess = $oJs.CallFunction($oFuncCall,$oResult)
If ($bSuccess = False) Then
    ; Examine the result for an exception.
    ConsoleWrite($oResult.Emit() & @CRLF)

    ; Also examine the LastErrorText.
    ConsoleWrite($oJs.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($oResult.Emit() & @CRLF)

; Result:
; {
;   "type": "double",
;   "value": 35.75
; }

; The function also emitted text to the console.

$oSbOut = ObjCreate("Chilkat.StringBuilder")
$oJs.ConsoleOutputSb $oSbOut
ConsoleWrite($oSbOut.GetAsString() & @CRLF)

; Output:
; 10.5,20,5.25
; 10.5
; 20
; 5.25

; -----------------------------------------------------------
; Note: If the array argument is simple, this is an alternative
; and simpler way of creating the funcCall:

$oFuncCall.Clear 
$oFuncCall.UpdateString("name","calculateTotal")
$oFuncCall.UpdateNumber("args[0][0]","10.50")
$oFuncCall.UpdateNumber("args[0][1]","20.00")
$oFuncCall.UpdateNumber("args[0][2]","5.25")
ConsoleWrite($oFuncCall.Emit() & @CRLF)