VBS tutorial: Functions – IsNumeric functions


IsNumeric function

Returns a Boolean value indicating whether the value of the expression is a number.


expressionParameters can be any expression.


If the wholeexpressionIdentified as a number,IsNumericFunction returnTrue; Otherwise, the function returnsFalse。 IfexpressionIs a date expression,IsNumericFunction returnFalse

The following example usesIsNumericThe function determines whether a variable can be used as a value:

Dim myvar, mycheckmyvar = 53 'assignment. Mycheck = IsNumeric (myvar) 'returns true. Myvar = "459.95" 'assignment. Mycheck = IsNumeric (myvar) 'returns true. Myvar = "45 help" 'assignment. Mycheck = IsNumeric (myvar) 'returns false.

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