Lianja

Eval JavaScript Returning Int

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

llSuccess = .F.

// 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.
loSbScript = createobject("CkStringBuilder")
llSuccess = loSbScript.LoadFile("js_eval_return_int.js","utf-8")
if (llSuccess = .F.) then
    ? loSbScript.LastErrorText
    release loSbScript
    return
endif

loJs = createobject("CkJs")
loResult = createobject("CkJsonObject")

// 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.
llSuccess = loJs.Eval(loSbScript,loResult)
if (llSuccess = .F.) then
    ? loSbScript.LastErrorText
    release loSbScript
    release loJs
    release loResult
    return
endif

loResult.EmitCompact = .F.
? loResult.Emit()

// Output:

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


release loSbScript
release loJs
release loResult