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Introduction
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What is Servoy?
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VFP2Servoy Toolkit
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EVALUATE() - eval()
Evaluates a character expression and returns the result.
Note! Be careful eval() might produce unexpected results! Also, combined with user input,
eval() potentially forms a security risk. When evaluating variables inside a function they
might be out of scope. Servoy says: eval()==evil. Use with caution.
VFP code example
cText = "ABS(-3.45)"
nResult = EVALUATE(cText)
? nResult
&& returns 3.45 |
Servoy code example
var cText =
"Math.abs(-3.45)";
var nResult = eval(cText);
application.output(nResult);
// returns 3.45
// alternatively:
globals.EVALUATE("Math.abs(-3.45)"); // returns 3.45
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Conclusion
In VFP EVALUATE() works just fine although it may form a security risk if it is combined with user input (i.e: EVALUATE("DELETE ALL")).
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External resources:
 vfp plugin
ServoyWorld 2012 pics
Official Servoy website
Ken Levy on Servoy
Servoy info
Servoy Forum
Servoy Documentation
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