+- 0Day Forums (https://zeroday.vip)
+-- Forum: Coding (https://zeroday.vip/Forum-Coding)
+--- Forum: JScript (https://zeroday.vip/Forum-JScript)
+--- Thread: Detect function's caller's ScriptEngine (/Thread-Detect-function-39-s-caller-39-s-ScriptEngine)
Detect function's caller's ScriptEngine - weetlessu - 07-24-2023
I'm trying to determine a function's result depending on the caller's ScriptEngine:
//JScript
function doSomething()
{
if (ScriptEngine() === "VBScript")
return "this is VBScript";
else
return "this is JScript";
}
But the results are:
//JScript
var str = doSomething(); //"this is JScript"
//VBScript
Dim str : str = DoSomething() '"this is JScript"
The `ScriptEngine()` function always returns its caller's engine name, but I would like to know the `doSomething()` caller's engine name (without passing it as a parameter). Is there any way to do this in ASP?
The motivation behind this is that I wrote a JSON utility class to use in an ASP site. The parsing of the JSON string is done via `eval` (using the validation that I found in [this](
[To see links please register here]
) answer).The result of `eval` is a JScript object (with JScript arrays and JScript dates as properties). Then the user must specify a flag to tell the function if he wants the pure JScript object or if he wants a VBScript object (with arrays and dates converted to their VBScript equivalent). I would like to eliminate that parameter.
//JScript
function parseJson(jsonString, isJsObject)
{
var parsedObject = parsingLogic(jsonString);
if (!isJsObject) //Would like to replace by engine check
convertVbProperties(parsedObject);
return parsedObject;
}
RE: Detect function's caller's ScriptEngine - postcibal497937 - 07-24-2023
I ended up keeping the `isJsObject` parameter. Since we were using VBScript most of the time, and JScript was only being used to build libraries, that worked fine.