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Prevent JavaScript Infinite Loops

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Demonstrates how prevent infinite loops or prevent the JavaScript from running for a longer amount of time than allowed.

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Local $bSuccess = False

;  This is the JavaScript we'll run:

;  console.log('Starting infinite loop...'); while(true) {};

$oSbScript = ObjCreate("Chilkat.StringBuilder")
$oSbScript.Append("console.log('Starting infinite loop...'); while(true) {};")

$oJs = ObjCreate("Chilkat.Js")

;  Set a limit on the amount of time (in seconds) the script is allowed to run.
;  If the JavaScript takes longer than this amount of time, then Chilkat kills the script without crashing the host program.
;  The default value of TimeoutSeconds is 0, which indicates no limit.
;  For this example, set a limit of 2 seconds.
$oJs.TimeoutSeconds = 2

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

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

    ;  The result contains this:

    ;  	{
    ;  	  "exception": {
    ;  	    "message": "interrupted - JavaScript exceeded the Chilkat.Js.TimeoutSeconds",
    ;  	    "stack": [
    ;  	      {
    ;  	        "func": "<eval>",
    ;  	        "file": "<input>",
    ;  	        "line": 1,
    ;  	        "col": 8
    ;  	      }
    ;  	    ]
    ;  	  }
    ;  	}

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

;  We should never get here..
ConsoleWrite("Succeeded." & @CRLF)
ConsoleWrite($oResult.Emit() & @CRLF)
JavaScript
console.log('Starting infinite loop...');
while(true) {};