IsNumeric Function

Syntax
IsNumeric(expr)
Group
Variable Info
Description
Return the True if expr is a numeric value.
Parameters Description
expr A variant expression is a numeric value if it is numeric or string value that represents a number.
See Also
TypeName, VarType

Sub Main
    Dim X As Variant
    X = 1
    Debug.Print IsNumeric(X) 'True
    X = "1"
    Debug.Print IsNumeric(X) 'True
    X = "A"
    Debug.Print IsNumeric(X) 'False
End Sub