Unicode C++

Eval JavaScript Returning Int

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Demonstrates getting the completion value of a JavaScript that returns an integer. Unicode C++

#include <CkStringBuilderW.h>
#include <CkJsW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  This example demonstrates getting the completion value of a script,
    //  where the last evaluated expression is an integer.

    //  The Javascript run in this example is shown below.

    //  Load the JavaScript from a file.
    CkStringBuilderW sbScript;
    success = sbScript.LoadFile(L"js_eval_return_int.js",L"utf-8");
    if (success == false) {
        wprintf(L"%s\n",sbScript.lastErrorText());
        return;
    }

    CkJsW js;
    CkJsonObjectW result;

    //  Run the JavaScript
    //  Eval returns the completion value of the script. This is generally the value of the last evaluated expression.
    //  In this case, the last evaluated expression is an int.
    success = js.Eval(sbScript,result);
    if (success == false) {
        wprintf(L"%s\n",sbScript.lastErrorText());
        return;
    }

    result.put_EmitCompact(false);
    wprintf(L"%s\n",result.emit());

    //  Output:

    //  {
    //    "type": "int",
    //    "value": 42
    //  }
    }