(Classic ASP) Eval JavaScript Returning Int

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

Note: This example requires Chilkat v11.4.0 or greater.

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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

' 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.
set sbScript = Server.CreateObject("Chilkat.StringBuilder")
success = sbScript.LoadFile("js_eval_return_int.js","utf-8")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( sbScript.LastErrorText) & "</pre>"
    Response.End
End If

set js = Server.CreateObject("Chilkat.Js")
set result = Server.CreateObject("Chilkat.JsonObject")

' 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 = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( sbScript.LastErrorText) & "</pre>"
    Response.End
End If

result.EmitCompact = 0
Response.Write "<pre>" & Server.HTMLEncode( result.Emit()) & "</pre>"

' Output:

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

%>
</body>
</html>


const base = 10;
const multiplier = 4;
const offset = 2;

// The last line is a calculation resulting in an integer
// Returns 42.
(base * multiplier) + offset;