IsNumeric function (LotusScript® Language)
Tests the value of an expression to determine whether it is numeric, or can be converted to a numeric value.
Syntax
IsNumeric ( expr )
Elements
expr
Any expression.
Return value
The IsNumeric function returns TRUE (-1) if the value of expr is a numeric value or can be converted to a numeric value. The following values are numeric:
- Integer
- Long
- Single
- Double
- Currency
- Date/Time
- EMPTY
- String (if interpretable as number)
- OLE error
- Boolean (TRUE, FALSE)
If expr is not a numeric value and cannot be converted to a numeric value, IsNumeric returns FALSE (0). The following values are not numeric:
- NULL
- Array
- List
- Object (OLE Automation object, product object, or user-defined object)
- String (if it cannot be interpreted as number)
- NOTHING
Usage
A common use of IsNumeric is to determine whether a Variant expression has a numeric value.