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Eval

The Eval function will evaluate an expression that is stored in a string and return the result of that evaluation. This allows you to build dynamic ASP expressions at runtime and evaluate them using the Active Server Pages expression parser.

Dim nOne, nTwo, nThree, sExpr

nOne = 22
nTwo = 44
nThree = 6

sExpr = "((nOne + nTwo) / nThree)"
Response.Write "Result is: " & Eval(sExpr)


If the expression is in the form sExp1 = sExp2, the statement will be treated as a boolean comparision and return a value of true if the expressions are equal, false when the expressions are not equal.

For a much more powerful ASP parser, you should look into the Evaluate subroutine.

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ASP Nut provides articles and reference documentation for Active Server Page developers.